Each spring, hundreds of thousands of swans, geese, cranes and other waterfowl descend on a Montana lake on their way to the Arctic. A small town festival draws thousands of bird fans.

Her blue eyes light up as she shares bird identification ... Fixing the scope towards the center of the lake, Hudnutt watches ...

Her blue eyes light up as she shares ... Hudnutt watches the sun's first colors reflect off a white blur of tens of thousands of geese and swans, bobbing like a thin layer of snow on the water's ...