Yellow Warbler Among Apple Blossoms, New York (Yellow Warblers)

Yellow Warbler Among Apple Blossoms 2, New York (Yellow Warblers)

Red-breasted Nuthatch, Montana (Red-breasted Nuthatches)

Barn Swallows with Mud for Nesting, Montana (Barn Swallow)

Mountain Bluebird in Flight, Montana (Mountain Bluebirds)

Tree Swallows Mating, Montana (Tree Swallow)

Tree Swallow with Nesting Material, Montana (Tree Swallows)

Canada Warbler, Shindagin, NY (Canada Warblers)

Prairie Warbler, Danby, NY (Prairie Warblers)

Ovenbird, Ithaca, New York (Ovenbirds)