Blue Jays in Winter, study for book Concealing Colouration in the Animal Kingdom
White Birch Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom
Heterocampa Biundata, Walker, study for book Concealing Colouration in the Animal Kingdom
A toothdrawer concealing the key from the patient
"Mirror-Back" Caterpillar, study for book Concealing Colouration in the Animal Kingdom
Oak Leaf Edge Caterpillar, study for book Concealing Colouration in the Animal Kingdom