As temperatures in the Valley reach record-breaking levels, it’s not just Arizona’s human residents who are affected. Cooper’s Hawks are leaving their overcrowded nests early to escape the heat, ...

Cooper’s hawks (Astur cooperii) are crow-sized hawks with broad rounded wings and a long tail. Weighing at most 24 ounces, ...

A chatty pair of gray catbirds built their nest in a large honeysuckle bush near my back door this spring. They often bathed in the birdbath and perched on an arbor to sing their mimic-y songs before ...

"The Cooper's Hawk presents the general reader and professional biologists interested in birds and nature, with an authoritative account of the breeding biology of the what is perhaps the most ...