Roseate Spoonbills, study for book Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1900
Red Flamingoes, study for book Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1900
Roseate Spoonbill, study for book Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1900
Sunrise or Sunset, study for book, Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1900
The Sky Simulated by White Flamingoes study for book, Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1900
Little Bear, Steep Wind, The Dog; Three Distinguished Warriors of the Sioux Tribe George Catlin, 1860
Heterocampa Biundata, Walker, study for book Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1920
Smaller Spotted Beach Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Emma Beach Thayer
White Birch Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Emma Beach Thayer
Copperhead Snake on Dead Leaves, study for book Concealing Coloration in the Animal Kingdom Abbott Handerson Thayer, 1910
Larger Spotted Beach Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Emma Beach Thayer
Jagged Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Louis Agassiz Fuertes
Jagged Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Emma Beach Thayer
Unspotted Beach Leaf Edge Caterpillar, study for book Concealing Coloration in the Animal Kingdom Emma Beach Thayer