306 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



189 (177.2); tail, 101-122 (111.4); culmen, 15-18.5 (16.9); tarsus, 

 23.5-26 (24.7); middle toe, 26.5-31 (28.3).« 



Young. — Coloration much duller than in adults ; pileum deep gray, 

 or brownish gray (the forehead more brownish), without any metallic 

 gloss; back, scapulars, and smaller wing-coverts brownish, some of 

 the feathers (especially wing-coverts) with pale rusty brown terminal 

 margins; foreneck and chest vinaceous-grayish, sometimes tinged 

 with fawn color or intermixed with fawn-colored feathers; otherwise 

 essentially as in adults. 



tt Twenty-one specimens. 



Specimens from Venezuela, Colombia, and San Miguel Island, Panama, average 

 more deeply colored than those from Central America and southern Mexico (Costa 

 Kican specimens being, apparently, the palest), but on the whole they seem to agree 

 better with C. r. pallidicrissa than with C. r. rufina. Some specimens from the coun- 

 tries named are, however, quite as gray beneath as typical C. r. rufina. 



