LnRiLWltYWdlLnRiLWltYWdlLWZyYW1lLXBvbGFyb2lke3Bvc2l0aW9uOnJlbGF0aXZlO3BhZGRpbmc6MTVweDtiYWNrZ3JvdW5kLWNvbG9yOiNmZmY7d2lkdGg6MTAwJTt6LWluZGV4OjI7Ym94LXNoYWRvdzowIDAgMjBweCByZ2JhKDAsMCwwLDAuOCl9LnRiLWltYWdlLnRiLWltYWdlLWZyYW1lLXBvbGFyb2lkIGZpZ2NhcHRpb257bWFyZ2luLXRvcDowfS50Yi1pbWFnZSAudGItaW1hZ2UtcG9sYXJvaWR7cG9zaXRpb246cmVsYXRpdmU7ZGlzcGxheTppbmxpbmUtYmxvY2s7dHJhbnNpdGlvbjp0cmFuc2Zvcm0gMC4yNXMgZWFzZX0udGItaW1hZ2UgLnRiLWltYWdlLXBvbGFyb2lkLWlubmVyIGltZ3tkaXNwbGF5OmJsb2NrO3dpZHRoOjEwMCV9
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
Clue #1 An animal left these in the snow.
Clue #2 The animal could fly.
Clue #3 It has feathers.
These are ptarmigan tracks. In the winter the willow ptarmigan's feathers turn white. Ptarmigan spend a lot of time wandering around on the ground, looking for food.