Terns. 



64. Caspian Tern [Sterna caspia). L. 21. T. 6., 

 forked 1.5. Largest of our Terns. Ads., breeding. 

 Bill red; cap black; above pearl; below white; primaries 

 frosty black. After breeding, crown streaked black and 

 white; bill more orange. Yng. Similar to last but 

 wings and tail with blackish. Notes. A loud, harsh 

 "kqy-awk" or ii key-rak.'" 



Range. — Cosmopolitan; breeds in North America, locally from 

 Texas to Newfoundland and Great Slave Lake; winters mostly south 

 of United States; three California winter records. 



65. Royal Tern {Sterna maxima). L. 19; T. 7, fork- 

 ed 3.5; B. 2.5. Ads., summer. Primaries frosty black, 

 white on inner two-thirds of inner web except at tip, 

 where frosty; bill orange red; crown black; above pearl; 

 below white. Ads., winter. The same, but head 

 white with black streaks. Yng. Similar to winter ad. 

 but wings and tail with grayish. 



Range. — Middle America; breeds from southern Brazil and Peru to 

 Gulf States, Virginia, and California; wanders north to Great 

 Lakes and Massachusetts; winters from Gulf States and California 

 southward. 



66. Elegant Tern (Sterna elegans). L. 16.5; B. 2.7. 



Similar to No. 65, but smaller; bill longer and more, 

 slender. Ads. Tinged with shell pink below. 



Range. 

 O. U.) 



'Pacific coast of America from California to Chili." (A. 



67. Cabot Tern (Sterna sandvicensis acnflavida). 

 L. 16; T. 5.5, forked 2.7. Ads. , breeding. Bill black, 

 the tip yellow-, crown black; above pearl; below white; 

 primaries much as in No. 65. After breeding, head 

 white; nape with black streaks. Yng. Similar to 

 last but with back and tail with blackish; tip of bill 

 less yellow. 



Range.— Tropical America; breeds on east side of Mexico north 

 along Gulf Coast to Florida, and Atlantic coast to South Carolina; 

 wanders to Massachusetts; winters south of United States to West 

 Indies and Central America. 



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