Bird blizzard: More than a million snow geese blot out the sky as they make epic journey to Arctic tundra

More than a million snow geese take flight over the skies of Missouri - creating the illusion of a blizzard - in these awe-inspiring pictures.

The spectacle was captured in Squaw Creek National Wildlife Refuge as the birds began their annual summer migration back to the Arctic tundra found in Greenland, Canada, and Alaska.

Groups of birds numbering between 100 and 1,000 make the journey together alongside others, their swooping mass blotting out large swathes of sky.

Photographer Doug French, from Nebraska, captured the jaw-dropping scenes earlier this year.

He said: 'This flock of more than one million geese were seen leaving the refuge early in the morning at sun rise.

'At times more than 100,000 geese would erupt from the lake in a solid white and black wall of geese and the sound of their wing beats would drown out everything else.

'You could not see through these giant walls of geese.'

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