Room for two more little ones? Four and 20 freezing swallows huddle up on a single brrrranch

Like the hilarious Pixar animation 'for the birds', these swallows huddle together to shelter from the cold.

But, instead of pecking the feet of a larger bird until the wire twangs, these little creatures are snuggling up against the harsh winter weather along the Yukon River in Canada.

Struggling to stay warm as temperatures plummet below freezing in a bitter snow storm, they clamour onto a single branch to conserve heat. And because of their ingenuity, every single one of them survived.     Read Full