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