Heterocampa Biundata, Walker, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Sphinx Caterpillar, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Male Wood Duck in a Forest Pool, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Sphinx Caterpillar, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Copperhead Snake on Dead Leaves, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Oligocentra Lignicolor, Walker, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
Peacock in the Woods, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer1907
Roseate Spoonbills, study for book Concealing Coloration in the Animal KingdomAbbott Handerson Thayer
The Sky Simulated By White Flamingoes Study For Book, Concealing Coloration In The Animal KingdomAbbott Handerson Thayer
The Sky Simulated By Red Flamingoes, Study For Book Concealing Coloration In The Animal KingdomAbbott Handerson Thayer
Blue Jays In Winter, Study For Book Concealing Coloration In The Animal KingdomAbbott Handerson Thayer
