The Migration of North American Sparrows 



FOURTEENTH PAPER 



Compiled by Professor W. W. Cooke, Chiefly from Data in the Biological Survey 



With Drawings by Lodis Aoassiz Fdertes 



(See frontispiece) 



RED CROSSBILL 



The Red Crossbill is a well-known wanderer; in fact, many of its movements 

 are wanderings, as distinguished from true periodic migrations. It breeds 

 locally along the whole Alleghany range, from Gfeorgia to New England, and 

 during the winter season invades the lower districts both to the east and the 

 west. These invasions are exceedingly variable as to frequency, time of the 

 year, and number of individuals. This Crossbill is also probably the most 

 irregular of all North American birds in its time of nesting. At Craftsbury, Vt., 

 it was found nesting in February; at Stephentown, N. Y., a bird, on July 12, 

 was found to contain an egg nearly ready to lay; in Yellowstone Park, Wyo., 

 young were noted just out of the nest in August; at Flathead Lake, Mont., 

 eggs were collected July 27, 1903; while eggs must sometimes be deposited 

 in December, or even November, since a young bird taken at Monument, 

 Colo., January 5, 1893, was only a day or two from the nest. 



SPRING MIGRATION 



(45) 



