Photos

 

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