Identification Guide to North American Birds, Part I: Columbidae to Ploceidae
By Peter Pyle.
Description
A highly technical guide for researchers, used for bird banding, which includes data for 395 species and 857 subspecies. The data includes plumage, molt patterns, measurements (wing, tail, bill, tarsus, mass), sexing, and ageing information. - from Amzon
ISBN(s)
0961894024, 9780961894023
