570 



U. S p. K. R, EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 



not much like the eastern fish crow, appears to possess its peculiar hahits. la all essential 

 ieatures it is like the common Corvus amtricanus; so much so, indeed, that but for the slight dif- 

 ference in size it would he difficult to tell skins of the two apart. According to Drs. Cooper and 

 Suckley, they are maritime, feeding on the sea beach at low tide, and coming about the settle- 

 ments with considerable familiarity, being much less shy and susi^icious than the common crow. 

 The note, too, is said to be a little different. 



The species is readily distinguished from the eastern fish crow by the larger size, the absence 

 of green gloss on the belly ; the tarsi longer than the middle toe and claw instead of shorter, 

 and the second quill being generally shorter than the sixth instead of longer. It is so much 

 like the Corvus amerkanus as to be only distinguishable by its infeiior size and habits. Indeed, 

 it is almost a question whether it be more than a dwarfed race of the other sj)ecies. 



Crows from California and one from Vancouver (10303) agree, by their larger size, with the 

 eastern Corvus americanus, and may thus be distinguished from the C. caurinus. 



Detailed measurements. 



List of specimens. 



