Merry Christmas Arch, Madrid, New Mexico, November 1946

White Sands National Monument, New Mexico, February 5, 1947

Moonrise over the Sangre de Cristo Mountains, Tesuque, New Mexico, June 19, 1948

Moonrise over the Sangre de Cristo Mountains, Tesuque, New Mexico, June 19, 1948

Old Door Hasp, Detail, Algodones, New Mexico, March 23, 1947

Black Rocks and Red Ball Erosion, Hanksville Road, Utah, August 17, 1963

Amphitheater and Pool, Redbud Canyon, San Juan River, Utah, May 25, 1962

Barn Swallow, Great Spruce Head Island, Maine, July 9, 1974

Redbud in Shade, Aztec Creek, Glen Canyon, Utah, April 11, 1963

Red Boulders, Muley Tanks, Waterpocket Fold, Utah, August 22, 1963

Edge of Cliff, Muley Point, Cedar Mesa, Utah, August 16, 1963

Black-and-white Warbler, Male, Silver Lake, New Hampshire, July 1, 1939 [Mniotilta varia]

Black-throated Green Warbler, Great Spruce Head Island, Maine, June 25, 1945

Wood Thrush, June 15, 1941

Black-throated Green Warbler, Great Spruce Head Island, Maine, June 29, 1945

Red-eyed Vireo with Cowbird, June 20, 1941

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

Mine Buildings, Bland, New Mexico, April 8, 1940

Dead Cedar and Leaves, Betatakin, Navajo Reservation, Arizona, October 14, 1950

Dead Cedar and Leaves, Betatakin, Navajo Reservation, Arizona, October 14, 1950