two-barred crossbill (Loxia leucoptera) Description
White-winged Crossbill
Date 1921
Source http://www.flickr.com/photos/biodivlibrary/6260627584
Author Mathews, F. Schuyler
Full title Field book of wild birds and their music; a description of the character and music of birds, intended to assist in the identification of species common in the United States east of the Rocky Mountains, by F. Schuyler Mathews ... with numerous reproductions of water color and monotone studies of birds, and complete musical notations of bird songs by the author.
Source: https://commons.wikimedia.org/wiki/File:Field_book_of_wild_birds_and_their_music_(6260627584).jpg
The two-barred crossbill (Loxia leucoptera), known as the white-winged crossbill in North America, is a small passerine bird in the finch family Fringillidae. It has two subspecies, white-winged crossbill Loxia leucoptera leucoptera in North America, and two-barred crossbill Loxia leucoptera bifasciata in NE Europe and N Asia.
