Canada Warblers, Male and Female, Great Spruce Head Island, Maine, June 27, 1971

Audubon's Warbler, Male, Santa Fe Basin, New Mexico, June 26, 1950

Great Blue Heron and Anhinga, Taylor Slough, Everglades National Park, Florida, January 1974

Virginia's Warbler, Female, Aspen Valley, New Mexico, July 21, 1957

Painted Redstart, Ash Spring, Chiricahua Mountains, Arizona, May 9, 1959

Black-throated Blue Warbler, Male, Adams Trail, Alger Country, Michigan, June 28, 1960

Little Green Heron, Kissimmee River, Florida, April 16, 1954 [Butorides virescens]

Little Blue Heron, Mrazik Pond, Everglades National Park, Florida, January 1974

Pool with Reflections, Dark Canyon, Lake Powell, Utah, September 9, 1968

Rocks with Desert Varnish, Lake Powell, Utah, May 1965

Yellow Mold and Seep, Coyote Canyon, Utah, August 14, 1971

Yellow Mold and Seep, Coyote Canyon, Utah, August 14, 1971

Blue Hill, Maine, August 2, 1940

Waterfalls, Supai, Arizona, May 1940

Spring Flowers, Great Spruce Head Island, Maine, 1938

Calla palustris and Skunk Cabbage, Great Spruce Head Island, Maine, June 17, 1939

Blue Hill, Maine, August 3, 1940

Parson's Store, Camden, Maine, August 26, 1940

Spruce Trees, Great Spruce Head Island, Maine, August 1940

Side View Jacob Hamlin Arch, Coyote Canyon, Utah, August 19, 1971