bird genus - a genus of birds

family Strigidae, Strigidae - a family of nocturnal birds of the order Strigiformes

great gray owl, Strix nebulosa - large dish-faced owl of northern North America and western Eurasia

Strix aluco, tawny owl - reddish-brown European owl having a round head with black eyes

barred owl, Strix varia - large owl of eastern North America having its breast and abdomen streaked with brown

spotted owl, Strix occidentalis - a large owl of North America found in forests from British Columbia to central Mexico; has dark brown plumage and a heavily spotted chest