Bill Walker: Nuttall's Woodpecker
Bill Walker: Winter Reflections
Bill Walker: Q: Why did the pipit cross the road?
Bill Walker: Pied-billed Grebe
Bill Walker: Mr. and Mrs. Northern Pintail
Bill Walker: Snow and Ross's Goose
Bill Walker: Goose Bomb
Bill Walker: Snow Goose
Bill Walker: Whose leg is this?
Bill Walker: Common Moorhen
Bill Walker: Herring Gull
Bill Walker: Savannah Sparrow