Cormorants. 



I I 9. Cormorant {Thalacrocorax carlo). L. 36; T. 

 7.5, of 14 feathers. Ads. Chin and sides of throat 

 whitish; back glossy brownish, distinctly margined 

 with black; below uniform shining black. Breeding 

 plumage. Head and throat with white plumes; a white 

 patch on flanks. Yng. Belly white', above olive 

 grayish brown, margined with black; throat whitish) 

 neck brownish. 



Range.— North Atlantic; breeds from Nova Scotia to Greenland; 

 winters south to Carolinas. 



120. Double-crested Cormorant (Thalacrocorax 

 dilophus). L. 30; W. 12.5; T. 6.2, of 12 feathers. Ads. 

 Back brownish with distinct black margins; below 

 shining black. Breeding plumage. With tufts on 

 either side of head black, sometimes mixed with white; 

 throat pouch orange. Yng. Back browner; head, 

 neck, and lower belly brown; breast whitish. 



Range.— Eastern North America; breeds locally from Bay of Fundy, 

 Minnesota, North Dakota, northward; west to Assiniboia; winters 

 from southern Illinois and Virginia southward. 



120a. Florida Cormorant {P. d. Jloridanus). Simi- 

 lar to No. 120, but blacker and smaller. L. 25. 



Range. — South Atlantic and Gulf States; breeds north to North 

 Carolina and southern Illinois. 



120b. White-crested Cormorant (P. d. ancinatus). 

 Similar to No. 120, but larger, L. 36; nuptial crests 

 white. 



Range. — Pacific coasts; breeds in Alaska; winters south to Cal- 

 ifornia. 



1 20c. Farallone Cormorant (P. d. alhociliatus). 

 Similar to 120b., but smaller, L. 28. 



Range.— Breeds on California coast and in interior, south to Socorro 

 Island. (Ridgw.) 



12 1. Mexican Cormorant {Phalacrocorax mexican- 

 us). L. 25. W. 10. Ads. Narrow border at base of 

 pouch white. Breeding plumage. Neck with white 

 plumes. Yng. Head and hindneck brownish; back 

 grayish, margined with black; throat, foreneck and 

 breast brownish white; belly black. 



Range. — Breeds in West Indies and Central America to west Gulf 

 States; north in summer raiely to Kansas and southern Illinois. 



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