Species: Accipiter cooperii
Encyclopedia of Puget Sound
A medium-size diurnal raptor with rounded wings, a long brown/black banded tail (often rounded at the end), and a hooked bill; adult is mainly gray/brown above, barred rusty brown below, with strong contrast between dark crown and paler nape and back; immature is paler, with brown upperparts, dark-streaked whitish or buffy underparts, and white undertail coverts. Average length 36-51 centimeters, wingspan 74-94 centimeters; females average larger than males (NGS 1983).
Classification
Aves
Falconiformes
Accipitridae
Accipiter
NatureServe
Classification
Ecology and Life History
A medium-size diurnal raptor with rounded wings, a long brown/black banded tail (often rounded at the end), and a hooked bill; adult is mainly gray/brown above, barred rusty brown below, with strong contrast between dark crown and paler nape and back; immature is paler, with brown upperparts, dark-streaked whitish or buffy underparts, and white undertail coverts. Average length 36-51 centimeters, wingspan 74-94 centimeters; females average larger than males (NGS 1983).