FAMILY STRIGIDA. — OWLS. 181 
FAMILY STRIGID-AE. 
Owls. 
Radiated disk of feathers surrounding the eye; plumage, soft; toes, 
armed with strong curved talons. 
Group 1. Wing, less than 8.50 inches long. 
Section 1. Toes, thickly feathered. 
"Np 
Richardson’s Owl. Saw-whet Owl. 
Wing, less than 6.103; upper plumage, dark cinnamon brown, more or less 
marked with white; underparts, whitish, streaked with brown; immature birds 
have much white about the face. 
Saw-whet Owl. 
Acadian Owl. 
Nyctala acadica. 
See No. 3068. 
Wing, over 6.103; upper plumage, dark cinnamon brown, more or less marked 
with white; underparts, brown and white. 
Richardson’s Owl. 
Nyctala tengmalini richardsoni. 
See No. 305. 
