Red-breasted Nuthatch Flying Out, Male, Great Spruce Head Island, Maine, July 19, 1969

Ruby-crowned Kinglet, Male, Santa Fe Basin, New Mexico, July 11, 1951

Ruby-crowned Kinglet, Female, Great Spruce Head Island, Maine, June 23, 1964

Sedge Wren

Winter Wren

Red-breasted Nuthatch Flying Away, Male, Great Spruce Head Island, Maine, July 5-7, 1969

Purple Gallinule, Everglades National Park, Florida, February 16, 1954

White-winged Dove, Arizona-Sonora Desert Museum, Arizona, May 29, 1958

Mourning Cloak Butterfly, Sequence on Emergence of Adult #2, I, Tesuque New Mexico, July 1958

American Kestrel, Tesuque, New Mexico, June 28, 1958 [Falco sparverius]

Mourning Cloak Butterfly, Sequence on Emergence of Adult #1, I, Tesuque New Mexico, July 1958

Mourning Cloak Caterpillar, Sequence on Pupation #5, Tesuque, New Mexico, July 1958

Mountain Tarn, Stony Pass, Colorado, August 8, 1958

Rocks in Mountain Lake, Stony Pass, Colorado, August 8, 1958

Rocks in Mountain Lake, Stony Pass, Colorado, August 8, 1958

Mill Machinery, Old Hundred Mill, Cunningham Creek, Colorado, August 8, 1958

Cloud Formation, Mineral Point, Colorado, August 10, 1958

Tent Caterpillars on Box Elder, Dinosaur National Monument, Colorado, August 12, 1958

Dead Tree in Green River, Dinosaur National Monument, Colorado, August 12, 1958