Terns and Skimmer. 



75. Sooty Tern {Sterna fuliginosa). L. 17. Ads., 

 summer. Above black, forehead and underparts white; 

 tail black, except outer feathers which are mostly 

 white. Yng. Sooty slate; linings of wings white; 

 scapulars, upper tail coverts, and tail feathers tipped 

 with white. Notes. A squeaky quack, a nasal ker- 

 •wacky-wak, and other calls. 



Range. — "Tropical and subtropical coasts of the globe. In Amer- 

 ica from Chiii to western Mexico and the Carolinas, and casually to 

 New England." (A. O. U.) 



77. Black Tern (Hydrochelidon nigra surinamensis) . 

 L. 10. Ads., summer. Head and underparts black; 

 back, wings, and tail slate. Ads., winter. Forehead, 

 nape, and underparts white; head gray. Yng. Simi- 

 lar to last, but above with brownish ' margin. Notes. 

 77 A sharp peek. 



Range. — Temperate and tropical America; breeds in interior from 

 California, Kansas, and Illinois to Alaska; irregular migrant on Atlan- 

 tic coast from New Brunswick southward; winters south of United 

 States to Chili. 



79. Noddy (Anous stolidus). L. 15. Ads. Crown 

 silvery white; rest of plumage sooty brown. Yng. Sim- 

 ilar, but all sooty brown except white line from bill to 

 eye. Notes,, A low reedy cack increasing to a hoarc^, 

 guttural k- r - r . r -r-r-r-r. 



Range — Tropical and subtropical regions; in America from Brazil 

 and Chili north to the Gulf and South Atlantic States." (A. O. U.) 



80. Black Skimmer (Rvnchops nigra). L. 18. Ads. 

 Lower mandible longer than upper; forehead, under- 

 parts, part of secondaries, and tail white; rest of plum- 

 age black. Yng. Plumage widely margined with 

 buffy. Notes. Varied, nasal, penny-trumpet-like; 

 also ca-jyou, ca-you, like a hound's voice. 



Range.— North America, chiefly eastern; breeds from southern 

 New Jersey southward; wanders rarely to Nova Scotia; winters from 

 Gulf States to northern South America. 



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