Mountain Bluebird, Male, Tesuque, New Mexico, June 2, 1948

Hermit Thrush, Silver Lake, New Hampshire, June 3, 1953

Cactus Wren, Rio Grande City, Texas, May 10, 1947

Cactus Wren

Golden-crowned Kinglet, Seney, Michigan, June 25, 1973

Eastern Bluebird

Sanderlings, Sanibel Island, Florida, January 1974

Sanderlings, Sanibel Island, Florida, January 1974

Osprey, Penobscot Bay, Maine, July 1974

Cecropia Moths, Great Spruce Head Island, Maine, July 3, 1945

Larva Form of Midge, Tesuque, New Mexico, October 1957

TeleaPolyphemus Larva, 4 Weeks Old, Molting Sequence 1, #1, Tesuque, New Mexico, August 1960

Sanderlings, Sanibel Island, Florida, January 1974

Ruffed Grouse's Nest Silver Lake, New Hampshire, June 3, 1953

Ruffed Grouse's Nest Silver Lake, New Hampshire, June 3, 1953

Cape May Warbler

Tennessee Warbler, Male, Ely, Minnesota, June 30, 1961

Wilson's Warbler

Mourning Warbler

Olive Warbler, Female, Chiricahua Mountans, Arizona, June 9-10, 1959