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 

 it kay-ap}k" or "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. s; 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 aatflavida). 

 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 

 list 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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