Iceland: Land of Ice and Fire Natural World


Iceland: Land of Ice and Fire

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BIRDSONG

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Search and rescue teams are crossing Iceland's central plateau.

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A few kilometres below them, a huge reservoir of molten magma

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shakes the ground as it makes its way to the surface.

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The question is not IF an eruption will take place,

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but when...and where.

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Icelanders have turned their unstable, cold, rugged island

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into one of the most modern and culturally-rich nations on earth.

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But they still keep one foot in the wild

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and a very careful eye on the beast stirring beneath them.

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Over what turns out to be an explosive year,

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and through the eyes of wild foxes...

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..an eider duck farmer...

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..and Viking horsemen,

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we'll see why everything on Iceland

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remains uniquely connected to the land underfoot.

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Under the eerie glow of the Northern Lights,

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Iceland is in the iron grip of winter.

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Lying close to the Arctic Circle,

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with just a few hours of light a day,

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it has endured months below zero.

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At this time of year, it's hard to imagine Iceland's fiery origins,

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but the island emerged as molten lava

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from deep beneath the Atlantic Ocean.

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It's one of the planet's newest pieces of land.

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Everywhere are reminders of how little time it's had

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to shed its raw, rocky character,

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and how closely it's connected to the very centre of the earth.

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Iceland is so new and so isolated in the North Atlantic

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that, until relatively recently,

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there were no land mammals here at all.

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But during the last Ice Age,

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when it was connected to Greenland by ice bridges and ice floes,

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a very tenacious predator turned up.

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The Arctic fox.

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Iceland's first land mammal,

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in its many colour variations, was here to stay.

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But how it survived on Iceland without any of its regular prey,

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like lemmings, has long fascinated scientist Ester Unnsteinsdottir.

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'This is an Arctic species, it's adapted to the Arctic winter,

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'which is really cold.

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'And you can see it on the thick fur,

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'it's the thickest fur in the universe, so very well insulating.'

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It's actually better than a polar bear's

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against the biting cold.

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Enduring extreme weather is one thing -

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its biggest challenge on Iceland is finding food.

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They need to eat.

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And if they don't have enough food in the wintertime,

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especially before breeding, they don't manage to breed properly.

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There is a remarkable lifeline.

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An arm of the Gulf Stream helps to keep much of Iceland's

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long, rocky coastline ice-free.

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So even in winter, foxes can scavenge

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the washed-up remains of fish, seabirds and sea mammals.

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Only the toughest foxes hold on to a slice of good shoreline territory

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and get the chance to breed.

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But first, they have to find a mate.

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A dark male appears to have won over a brown female.

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A white male is desperate to mate with her, too.

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And succeeds in grabbing her attention.

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For a while, he seems to have outfoxed his rival.

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But it doesn't end well for him.

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The white male will have to try elsewhere.

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Hopefully, this brown female, with the victor in tow,

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has the strength she'll need to have a family.

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For the weak or the inexperienced, winter is a punishing time.

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Less than half of all foxes survive.

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Sea mammals have an easier ride.

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The ice-free waters offer

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some of the best fishing in the North Atlantic...

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..attracting not just seals, but whales and dolphins.

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The fertile seas were a good reason for humans to settle here, too.

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The first Vikings colonised Iceland just over a thousand years ago.

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Down the generations, through fishing and farming,

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they have carved out a unique way

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of dealing with the many limits to life.

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Most of Iceland's people, just over 300,000 of them,

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are descended from the original settlers.

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And many still work the land in tried and tested ways.

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Even their livestock traces back to the animals

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the Vikings brought with them.

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Purest and most admired is the Icelandic horse.

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It's smaller and much hardier than most other breeds.

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Owners give them a little help towards winter's end,

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but mostly, they tough out the cruellest of weather.

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The best way to raise livestock here is to keep the animals semi-wild.

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It gives them the character and spirit to survive

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in this austere volcanic landscape.

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But with little prime grazing land,

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Icelanders could never rely on their livestock alone.

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Long ago, the arrival of squadrons of swans, ducks and geese

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would have offered relief from dwindling winter rations.

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One species offered much more than a meal.

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Eider ducks are among the millions of birds that are drawn to Iceland

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from all around the North Atlantic.

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These days, Thor Bjornsson makes an unusual living from them.

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But he can't start work until the eiders have finished pairing up

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and have come ashore.

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He, and the birds, are waiting for spring.

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Exposed all winter to brutal Atlantic storms,

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Iceland has been blanketed by huge volumes of snow.

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When that melts, it fills thousands of streams and rivers.

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And cascades over some of Europe's

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largest and most powerful waterfalls.

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Iceland is so new and remote

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that relatively few species have made it here.

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Its hardy pioneers are always under pressure.

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Even now, it's a race to make the most of longer, warmer days ahead.

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After a winter of famine,

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male ptarmigan are hungry to reach the buds, packed with proteins,

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which are swelling at the top of willows and birches.

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It's a precarious high-wire act

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for a bird that spends the majority of its time on the ground.

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Down on the coast, Thor is impatient

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for the eiders to get on with mating.

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Millions of other migrating and resident birds

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are already nursing eggs, set to take advantage

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of what will be a very short, but bountiful summer.

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BIRDSONG

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Eventually, the eiders return to the western islands of Breidafjordur,

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finding the same nest scrapes

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that their mothers and grandmothers used before them.

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The mother duck cradles her eggs in a pillow of down

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collected from her own breast feathers.

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There is no other duck down like it.

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It's this down that Thor wants to harvest,

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but he'll need his extended family to help gather it.

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Thor's farm consists of nearly 300 small islands.

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And they'll have to deal with over 3,000 wild eider ducks.

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It's going to be a busy few weeks.

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Spring has finally reached Hornstrandir,

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the craggy, lonely, north-western corner of Iceland.

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After a severe winter, this female fox

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is hanging around one of only two den sites.

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The lack of food over the past few months will have taken its toll,

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but now she has to step up a gear.

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She's looking after not just herself...

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..but six newborn cubs.

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Her work is cut out.

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She's a mum with a sky-high milk bill.

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Just to keep up production, she's going to have to spend

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the next weeks hunting fulltime.

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Arctic foxes are feisty opportunists.

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They may be small, but when livestock arrived on Iceland,

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they soon worked out how to kill animals much larger than themselves.

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In response, the early settlers began hunting foxes

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to keep their numbers under control.

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Today, foxes still take livestock

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and the hunting quotas enshrined in law in the 13th century

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are still in force.

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On Iceland's marginal land,

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the challenges facing both fox and farmer cannot be underestimated.

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Making a living out here is tough.

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For farmers like Halldor, horses are their pride and joy.

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These days, Halldor and his son-in-law, Snorri,

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mostly breed them for riding.

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Horses are still better than 4x4s

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on Iceland's rough tracks and mountain passes.

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Just as sturdy and dependable

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as when they were the backbone of Icelandic communities.

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HE SPEAKS OWN LANGUAGE:

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The finest horses became highly-regarded status symbols.

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SNORRI IN ENGLISH: You had a lot of respect if you had the best horse.

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Even if you were a poor farmer,

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if you had the best horse, you had respect.

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HALLDOR SPEAKS OWN LANGUAGE

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SNORRI TRANSLATING: "Really important for the young guys to have a nice horse

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"when they were looking for girls.

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"When you came with good clothes, on a nice horse,

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"you had a good chance."

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Every spring, Halldor checks on his pregnant mares.

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He hopes his favourite stallion will be the father.

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The very best foals will be much admired at the end-of-year round-up,

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but Halldor has no control over their arrival.

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They give birth to their foals in secret.

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Often after dark, and without help.

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Halldor has to trust that his mares are robust enough to cope.

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Over 3,000 eider ducks are now settled on eggs on Thor's islands.

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He and his family carefully comb each rocky outcrop,

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looking for nests.

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Thor's unusual livelihood allows him

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to spend time in the wildest parts of Iceland,

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among the nature he loves so much.

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'I started about 1970.

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'And I was 14 years old then.

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'I found it very, very nice to be with the birds, like this.

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'Collecting down and all the wildlife around it.'

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Thor carefully sets the eggs aside, removes the down,

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and will re-cushion the eggs in soft, warm hay.

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The female ducks can then return to their duties with no harm done.

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His yield is limited by the number of birds that return each year.

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Some years are better than others and...

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..we get up to 55 kilos of eiderdown.

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Normally, it's about 65 nests in one kilo of down.

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Eiders have proved tricky to domesticate.

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Their down can only be farmed from wild birds.

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To increase overall numbers,

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Thor collects and rears a few offspring

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that may not otherwise survive.

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'A lot of young ones, eider ducklings, die in many ways.

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'Bad, er...weather, wet and windy.

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'They cannot get enough food.

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'So normally, they maybe raise up one duckling,

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'two ducklings, something like that.

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'We take one or two eggs from the nest,

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'depends how many eggs are in the nest.

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'When we started here, it was about something between 500 or 600 eiders

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'nesting in the homeland area, but now it's more than 1,000,

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'so they come back.'

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While his eggs are incubating, Thor gets down to business.

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Nearly three quarters of all eider duck down comes from Iceland,

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and it's all gathered by hand.

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Thor's family painstakingly pick the down clean

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before it's bagged up for sale.

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Most becomes a cosy filling for high-end duvets, quilts and jackets.

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THEY SPEAK OWN LANGUAGE

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Its secret may lie in the way the fibres flex and lock together,

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creating thousands of minuscule air pockets.

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It's such effective insulation

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that it's been used to keep astronauts warm in space.

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This is duck down that's flown to the moon and back.

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CHIRPING

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After a few days under a heat lamp, Thor's ducklings begin to hatch.

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They grow quickly.

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In the wild, eider ducklings can fledge after just a month.

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CHIRPING

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But under Thor's wing,

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they stand a much better chance of making it to adulthood.

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CHEEPING

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For these first days, at least,

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they only have eyes for their new duck dad.

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They won't follow him around long-term,

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but Thor will have to spend the rest of the summer

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as a stay-at-home father,

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teaching them skills they'll need to become wild birds.

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The longest days of the year are approaching,

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when the sun barely dips below the horizon.

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The fullness of summer

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is only really felt around the island's edges.

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Hardly anything lives on the vast, ash-covered central plateau.

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Its many volcanoes erupt too frequently and violently

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to give life much chance.

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It's like a sleeping giant that everyone's turned their back on,

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but dares not forget is there.

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Watching over the fox family,

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Ester is spending more and more time on the Hornstrandir peninsula.

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The cubs have been weaned,

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but Mum's workload just gets bigger by the day.

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Sibling rivalry can be lethal.

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It's thought that each fight reinforces their rank in the family.

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Dogged determination decides who gets most food

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and who, ultimately, survives.

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This mum seems to be made of particularly stern stuff

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and is providing for all six of the cubs.

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She's raising her family close to one of the most prolific

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seabird colonies in Iceland.

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There's lots of tempting food on offer.

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The problem is that it's perched on sheer walls of rock.

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If ever there was a high-stakes game, this mother is playing it.

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One false step and she will plunge hundreds of metres

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onto the rocks below.

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Her cubs will effectively die with her.

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SQUAWKING

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She's found a kittiwake.

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But with a growing family,

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she will have to risk her life over and over again.

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Today, she has the cliffs to herself,

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but until the 1950s, foxes were in direct competition

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with the people who eked out a living on this far-flung peninsula.

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'It was very harsh, even for humans, you know. It was really tough.

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'Bad winters and, er...not easy to survive.

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'So, both for humans and foxes.

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'And they were probably using the same resources,

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'both space and food,

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'so they were feeding on birds and eggs.

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'And that's what people were also feeding on.'

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On the remote island of Grimsey,

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they still gather eggs from the massive summer colonies.

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Its long coastline and towering cliffs of resistant volcanic rock

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provide ledge space for thousands of kittiwakes and guillemots.

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And burrows above for puffins.

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BIRDSONG

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Across Iceland, there is still the taste for seabird eggs.

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A traditional and free-range alternative

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to battery-farmed chicken eggs.

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These days, the kit may be relatively modern,

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but it still requires an old-fashioned head for heights.

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Timing is crucial.

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Eggs are scooped up right after laying.

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The theory being that as soon as the birds realise

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their egg has gone, they'll re-lay.

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The collectors simply delay the hatch by a few days.

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The length of cliff which each collector sweeps

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is strictly controlled.

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Today, these eggs are sold through supermarkets,

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or traded for autumn berries from the mainland.

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For many, foraging remains a part of everyday life,

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tapping into the rich natural resources around them.

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The most remarkable resource of all is the heat beneath their feet.

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The island lies over the edge of two continental plates

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that are pulling away from each other.

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Iceland is being stretched apart in the middle.

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It's the easiest place for boiling molten rock

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to rise towards the surface.

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This readily heats groundwater,

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which, day to day, can be rather useful.

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Long ago, Icelanders discovered how it could slow-cook

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one of their most celebrated foods, lava bread.

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Every household has its own secret recipe for roobrau,

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but each loaf will be baked in much the same way.

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Once the dough is bucketed up, it will be placed in a hot spring -

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nearly every rural community has one -

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and then left for 24 hours.

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The immense geothermal power on offer

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has transformed the lives of all Icelanders.

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They live just south of the Arctic Circle.

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Yet, modern, ground-heated greenhouses

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allow them to ripen vegetables and fruits

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that wouldn't otherwise stand a chance of growing here.

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They've created a sustainable bubble

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in which plants and their pollinators

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defy the limits of growing on raw, northern rock.

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But along with their daily bread, Icelanders are fed updates

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on the many earthquakes that occur on the island.

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It's as routine as the weather forecast.

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And this year, it seems, more important than ever.

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In late May, a swarm of 200 earthquakes

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register under the Bardarbunga volcano in central Iceland.

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It lies under Europe's largest glacier, Vatnajokull.

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And eruptions in the past have caused catastrophic floods.

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There's no evidence as yet that magma is on its way to the surface,

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but pilots overflying the area

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are asked to keep an eye on any changes to the ground below them.

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On this extraordinary island,

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ordinary life simply goes on.

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There have been over a dozen eruptions

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in Halldor's lifetime alone.

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Right now, he has more immediate concerns.

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One of his mares has just given birth.

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Like many creatures that evolved on open grassland,

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the foal's instinct is to get on its feet as quickly as possible.

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It seems healthy.

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The new foals will stay close to their mothers

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for most of their first year.

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But it may be the last Halldor sees of them for a long while.

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Soon, all his horses will move up the valley and into the mountains.

0:34:120:34:17

It will give these lower pastures a break.

0:34:170:34:20

But the move is also important to encourage the foals to run free.

0:34:220:34:26

If they're to survive their first winter,

0:34:270:34:30

they need to become resilient.

0:34:300:34:32

Horses from all the farms around here

0:34:390:34:41

are allowed to return to their roots.

0:34:410:34:44

Just like the ancestral wild horse of the Eurasian Steppes,

0:34:440:34:48

they'll roam in large herds

0:34:480:34:50

and won't see their owners

0:34:500:34:52

for many months.

0:34:520:34:54

You want to keep this wildness a little bit in the horses.

0:34:540:34:58

And this is the best place to do that.

0:34:580:35:00

And it's also really important that young horses go there, foals,

0:35:000:35:05

to learn this as quickly as possible.

0:35:050:35:08

This strengthens their mind a lot to do this.

0:35:080:35:13

Because you never know in Iceland, if... Just...

0:35:130:35:17

If it gets lost on the mountains,

0:35:170:35:20

they know how to help themselves.

0:35:200:35:23

I think also for the growing of the horses and the young horses,

0:35:230:35:28

it's, like, it grows much better and stronger on the mountains.

0:35:280:35:33

The Skagafjordur region prides itself

0:35:360:35:38

on producing the very best Icelandic horses.

0:35:380:35:41

Strict rules control the breed.

0:35:440:35:47

A horse sold abroad is never allowed to return,

0:35:490:35:52

having lost the magic mix of wildness and trainability.

0:35:520:35:56

This is the trait Halldor's foals must develop

0:35:580:36:01

if they are to do him proud at the end-of-year round-up.

0:36:010:36:04

The short summer is pressing on.

0:36:200:36:23

Wild eider ducks are already leading their young broods out on the water.

0:36:230:36:27

The eider is a diving duck

0:36:360:36:38

that spends the whole winter living at sea.

0:36:380:36:41

It's vital they become powerful swimmers.

0:36:410:36:43

Thor's ducklings, too,

0:36:490:36:51

must begin learning how to face the trials ahead.

0:36:510:36:54

Younger members of the family lead the way.

0:36:590:37:02

They get very quickly very big and strong.

0:37:060:37:10

And we bring them to the sea every day, or sometimes twice a day,

0:37:100:37:14

to feed in the sea and swim a little bit.

0:37:140:37:17

Here, they'll build up their muscles and sharpen their instincts.

0:37:200:37:23

They're still vulnerable to the cold

0:37:250:37:27

and to ravenous black-backed gulls,

0:37:270:37:29

so the children must guide and protect them.

0:37:290:37:32

First days, we have to look very well after them

0:37:350:37:38

because they want to go away.

0:37:380:37:40

So we try to gather them and so they don't swim away.

0:37:400:37:44

This wilful streak is good.

0:37:460:37:49

It means they haven't been tamed.

0:37:490:37:51

All in all, it's a fun way for the kids to connect with nature.

0:38:070:38:10

And the smallest member of the family

0:38:200:38:23

gets to talk down to someone else.

0:38:230:38:25

It's home-time.

0:38:480:38:50

The ducklings are gently herded and counted back in.

0:38:500:38:55

Where they'll fluff themselves back up

0:38:550:38:57

in readiness for the next stage of their training.

0:38:570:39:00

For now, it's job done.

0:39:070:39:09

BIRDSONG

0:39:140:39:16

In Hornstrandir, the Atlantic Ocean is slowly gnawing

0:39:160:39:20

at what remains of a very ancient and immense lava flow.

0:39:200:39:24

On its unforgiving edge, the mother fox has defied the odds.

0:39:290:39:33

All six of her cubs are still alive.

0:39:410:39:45

Although life is a challenge, they currently stand

0:39:450:39:47

a better chance in Iceland than elsewhere in the Arctic.

0:39:470:39:51

'There's very few Arctic foxes left in Scandinavia.

0:39:540:39:59

'And they have been endangered for many, many years.

0:39:590:40:03

'But they're facing troubles that we are not facing here in Iceland.'

0:40:030:40:08

Ester believes the big problem for Arctic foxes in Scandinavia

0:40:080:40:13

is the northward march of the red fox, due to climate change.

0:40:130:40:16

As it moves into Arctic fox territory,

0:40:180:40:21

the red fox takes over their den sites,

0:40:210:40:23

competes for food and even kills adults and young.

0:40:230:40:27

The Arctic foxes on Iceland remain out of reach.

0:40:310:40:36

The island is an important stronghold for them.

0:40:360:40:38

Mum's job is nearly done.

0:40:410:40:43

In the next few weeks, the cubs will leave home.

0:40:450:40:48

Hunger may force them into taking livestock,

0:40:560:40:58

where they risk being shot.

0:40:580:41:00

The odds are that not all of these cubs will survive

0:41:120:41:15

the coming winter, or go on to breed.

0:41:150:41:18

But the Arctic fox has an almost heroic ability

0:41:200:41:23

to turn hardship into opportunity.

0:41:230:41:26

This mum's given them the best possible start in life.

0:41:290:41:32

This far north, the limits to life

0:41:500:41:53

for animals and humans, are very stark.

0:41:530:41:56

So Icelanders have never been shy of taking from nature.

0:41:570:42:00

Traditionally, they've harvested everything from seabirds to whales,

0:42:030:42:07

fish to seals, some of which they still take today.

0:42:070:42:11

But it's clear that if you live on an island,

0:42:150:42:17

especially one so remote and northerly,

0:42:170:42:20

you cannot take more than you need.

0:42:200:42:22

Ever since the Vikings first landed,

0:42:280:42:30

fishing the rich offshore waters

0:42:300:42:32

have been fundamental to the country's economy.

0:42:320:42:35

In the 1970s, Iceland even used gunboats

0:42:360:42:39

to defend a 200-mile fishing limit around their coast.

0:42:390:42:43

Today, with careful management,

0:42:470:42:49

their fisheries are some of the most sustainable in the world.

0:42:490:42:52

Their long-term thinking has helped other countries, too.

0:43:010:43:04

Icelandic rivers are important spawning grounds

0:43:070:43:11

for the Atlantic salmon.

0:43:110:43:13

But in the 1980s, salmon started to decline,

0:43:160:43:20

due mainly to overfishing

0:43:200:43:22

by commercial operations on the high seas.

0:43:220:43:24

By raising funds to buy out the netting operations,

0:43:290:43:32

effectively paying them not to fish,

0:43:320:43:35

millions of salmon were given a chance

0:43:350:43:38

to return to rivers, from Norway to North America.

0:43:380:43:41

The problem is far from over.

0:43:460:43:48

Striking a balance between harvesting and protecting

0:43:480:43:51

is an ongoing effort,

0:43:510:43:53

but Icelanders manage it in their own unique way.

0:43:530:43:56

It's a country where hunting and gathering

0:43:580:44:00

sit side by side with modern life.

0:44:000:44:03

A nation with a dynamic economy, built around Reykjavik,

0:44:100:44:13

the most northerly capital city in the world.

0:44:130:44:16

Cheap, clean, renewable power warms homes,

0:44:180:44:21

keeps the lights on and provides mains' hot water.

0:44:210:44:24

Even city pavements have underfloor heating.

0:44:260:44:29

Reykjavik's Opera House celebrates music and drama

0:44:310:44:34

inspired by the original Icelandic sagas.

0:44:340:44:37

But Icelanders are necessarily rooted in reality.

0:44:380:44:42

They can never forget they're living over a huge

0:44:450:44:48

and widening tear in the earth's crust.

0:44:480:44:51

And as summer draws to a close,

0:44:530:44:55

the giant reservoir of molten rock under them is beginning to stir.

0:44:550:45:00

Back on the Breidafjordur islands, wild eider offspring

0:45:070:45:11

are learning what to eat by watching their parents.

0:45:110:45:14

It's Thor's job to introduce his ducklings to the kind of food

0:45:310:45:35

that will keep them going out on the open water.

0:45:350:45:37

When they grow up, they'll be diving mainly for molluscs,

0:45:400:45:43

which they eat, shell and all.

0:45:430:45:46

Tiny crustaceans, stirred up from the shoreline,

0:45:460:45:50

are good starter foods.

0:45:500:45:51

In the end, Thor, as a surrogate duck dad,

0:45:580:46:01

can only give them a helping hand.

0:46:010:46:03

Little by little, they spread their wings,

0:46:100:46:13

foraging a little further from home,

0:46:130:46:15

becoming a little wilder every day.

0:46:150:46:18

But they swim then between here, close to the island

0:46:210:46:25

and go on their own trips feeding,

0:46:250:46:28

but they always come home in the evening.

0:46:280:46:31

So they find something in this ocean to eat,

0:46:310:46:35

so it make them a good start in their new life in the world.

0:46:350:46:40

Eventually, Thor leaves them on their own.

0:46:460:46:48

His nurturing work is done.

0:46:500:46:52

Nature will take over from here.

0:46:540:46:56

But Thor hopes their homing instinct

0:47:000:47:02

will bring them back to his islands next year.

0:47:020:47:05

In the high pastures, ripening blueberries

0:47:170:47:20

and the turning leaves mark the slide to autumn.

0:47:200:47:24

Even though the first snows are dusting the mountains,

0:47:290:47:32

it's a time eagerly awaited by farmers

0:47:320:47:35

in the northern area of Skagafjordur,

0:47:350:47:37

for it also heralds the event of their social calendar,

0:47:370:47:42

the annual round-up.

0:47:420:47:43

The horses might die up here in winter blizzards,

0:48:210:48:24

so farmers join forces to gather up the different herds

0:48:240:48:28

and drive them all down the valley.

0:48:280:48:30

For this year's foals,

0:48:330:48:34

it's a complete surprise to be near humans again

0:48:340:48:37

and it goes against the grain.

0:48:370:48:39

But this independent spirit

0:49:020:49:04

is exactly what Halldor and Snorri want.

0:49:040:49:07

It's what the Vikings saw in the ancestors of these horses

0:49:070:49:10

when they traded them from Mongolia

0:49:100:49:13

and brought them to Iceland over 1,000 years ago.

0:49:130:49:16

This is horse-trading nature's way.

0:49:260:49:30

THEY NEIGH

0:49:450:49:46

Somehow, each farmer must separate their own horses from the crowd.

0:49:540:49:58

But they're judging everyone else's at the same time.

0:50:000:50:02

No horse is broken in until it's at least four years old,

0:50:110:50:14

so most of them have a mind of their own.

0:50:140:50:17

But this is what they love about them.

0:50:170:50:20

It's been the only way to raise horses

0:50:230:50:25

in Iceland's harsh environment.

0:50:250:50:27

Their return from the mountains, though, always brings deep relief.

0:50:320:50:36

When all is done, Halldor and Snorri

0:51:130:51:16

will lead the horses back to the farm,

0:51:160:51:18

as generations have done before them.

0:51:180:51:21

The land under their feet demands respect.

0:52:050:52:08

And in this, of all years.

0:52:090:52:11

High in the central plateau,

0:52:140:52:16

the Bardarbunga volcano has sprung into life.

0:52:160:52:19

Over a thousand earthquakes in a single day

0:52:200:52:22

suggest a huge volume of molten rock trying to reach the surface.

0:52:220:52:28

But where?

0:52:280:52:29

Fearing massive floods

0:52:300:52:32

should the eruption melt the Vatnajokull glacier,

0:52:320:52:36

search and rescue teams evacuate a vast area.

0:52:360:52:39

Hour by hour, scientists track the earth tremors

0:52:410:52:45

that mark the movement of the magma.

0:52:450:52:47

The column of hot rock is snaking northwards.

0:52:470:52:50

Eventually, it breaks through a fissure in the plains,

0:53:010:53:05

just beyond the edge of the glacier.

0:53:050:53:07

It's big. Probably the biggest lava eruption

0:53:080:53:13

that we have seen for 30 years or so, I would guess.

0:53:130:53:17

As it turns out, nothing like it

0:53:190:53:22

has been seen on Iceland for over 200 years.

0:53:220:53:25

The fissure is about 400 metres long,

0:53:370:53:40

but lava pours out at nearly 300 cubic metres a second,

0:53:400:53:45

like a cut that won't stop bleeding.

0:53:450:53:47

Underneath Iceland, the Eurasian plate is pulling eastwards

0:53:490:53:53

and the North American plate is pulling westwards.

0:53:530:53:58

Until this eruption, the island has been spreading apart

0:53:580:54:01

at two centimetres a year.

0:54:010:54:04

Here, it's opening up ten times faster.

0:54:040:54:07

The lava is a ferocious 1,200-degrees centigrade.

0:54:100:54:16

It would melt even cast iron

0:54:160:54:18

and incinerate a human being in seconds.

0:54:180:54:21

This is as close as we get to seeing into the centre of the earth.

0:54:230:54:27

The ground shakes as the fissure splits open even further,

0:54:490:54:53

creating a rift that's 1.5 kilometres long.

0:54:530:54:57

Pumped by pressure that's been building for centuries,

0:55:110:55:14

superheated gas and water causes tonnes of lava

0:55:140:55:18

to fountain up to 100 metres into the air all along its length.

0:55:180:55:22

These are the same monumental forces

0:55:240:55:27

that created Iceland in the first place.

0:55:270:55:29

Over the next six months,

0:56:330:56:34

the lava flow covers over 85 square kilometres.

0:56:340:56:38

85,000 tonnes of poisonous sulphur dioxide

0:56:450:56:49

is released into the atmosphere every day.

0:56:490:56:52

In 1783, an eruption on Iceland

0:56:580:57:02

threw up so much ash and sulphur dioxide

0:57:020:57:05

that it's thought to have caused famine on a global scale

0:57:050:57:08

and the deaths of six-million people worldwide.

0:57:080:57:12

Miraculously, this fissure allows the colossal pressure

0:57:150:57:18

under Bardarbunga to be released slowly.

0:57:180:57:22

Had it gone off just a few kilometres away,

0:57:220:57:25

explosively, under the Vatnajokull glacier,

0:57:250:57:28

the picture would be very different.

0:57:280:57:30

It's the ultimate reminder that the lives of all Icelanders

0:57:370:57:41

depend on the raw forces beneath them.

0:57:410:57:43

A wild life,

0:57:510:57:53

uniquely connected to nature, it may be,

0:57:530:57:55

but the remarkable people and animals that live here

0:57:550:57:59

have learned how to work with the land,

0:57:590:58:02

rather than fight against it.

0:58:020:58:04

They've taken all of Iceland's opportunities

0:58:060:58:09

and challenges in their stride.

0:58:090:58:11

GENTLE BARK

0:58:130:58:15

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