Rocky Mountain Orange-crowned Warbler, Aspen Basin, Sangre de Cristo Mountains, New Mexico, July 13, 1959

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

Worm-eating Warbler, Kanawha State Park, West Virginia, June 3, 1971

Worm-eating Warbler, Kanawha State Park, West Virginia, June 3, 1971

Yellow Warblers, Male and Female, Great Spruce Head Island, Maine, July 7, 1971

Yellow Warblers, Male and Female, Great Spruce Head Island, Maine, July 7, 1971

Yellow Warbler, Male, Union City, Michigan, June 6, 1955

Chestnut-sided Warbler, Female, Silver Lake, New Hampshire, June 23, 1953

Audubon's Warbler, Santa Fe Basin, New Mexico, July 9, 1954

Black-throated Gray Warbler, Tesuque, New Mexico, June 7, 1954

Yellow Warbler, Male, Ely, Minnesota, July 3, 1962

Yellow Warblers, Male and Female, Great Spruce Head Island, Maine, July 7, 1971

Yellow Warblers, Male and Female, Great Spruce Head Island, Maine, July 7, 1971

American Redstart, Male, Great Spruce Head Island, Maine, June 25, 1971

Common Yellowthroat, Great Spruce Head Island, Maine, July 20, 1945

Common Northern Yellowthroat

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

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

MacGillivray's Warbler, Male, Pacheco Canyon, New Mexico, June 15, 1954

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