Photos

 

An amazing glass frog in Costa Rica
Protecting birdfeeders from squirrels for cognitive testing in the wild.
Cruziohyla calcarifer at La Selva, Costa Rica
Toad explosion, McPherson Pond
Territorial response of a male great tit to a speaker broadcasting an intruder song
Studying cognition in wild songbirds in the famous Wytham Woods
Common frog spawn in County Cork, Ireland
Mating cricket frogs, Stillwater, OK
Red eyed treefrogs, Agallychnis callidryas, in Costa Rica
Moon over McPherson
Grasshopper collection site in Germany
A blue tit nest, from studies of bird cognition and breeding in County Cork, Ireland
Killarney National Park, field site for songbird cognition studies
Mating pair of Hypsiboas rufitelus at La Selva, Costa Rica
Moth, Stillwater, OK
Water snake at McPherson pond
Calling male Hyla chrysoscelis
Bullfrog in Missouri
Cantarrana (singing frog) swamp, La Selva, Costa Rica
Female Dendropsophus ebraccatus in Costa Rica
Metamorphosis
Leptodactylus pentadactylus, the smokey jungle frog
Heavy bullfrog, McPherson Pond
Deer skeleton, McPherson Pond