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