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Arctic Tern
Early Saxifrage
Early Saxifrage
Early Saxifrage
Herring Gull in flight
Herring Gulls on wing at Lake Superior
House Wren nest containing hairpins, side view
House Wren nest with hairpins, top view
Illustration of a Hesperornis restoration from a printed book
Illustration of an Archaeopteryx restoration from a printed book
Migration Chart, Artic Tern
Migration Chart, Artic Tern
Migration Chart, Artic Tern
Migration Chart, Black-and-white Warbler
Migration Chart, Blackpoll Warbler
Migration Chart, Blackpoll Warbler
Migration Chart, Bobolink
Migration Chart, Canada Goose
Migration Chart, Cliff Swallow
Migration Chart, Cliff Swallow