328 KEY AND DESCRIPTION 



Alaska to Brazil ; breeding in the interior from Illinois to Alaska, and 

 migrating through all parts of the eastern United States. 



12. Noddy (79. Anous stdlidus). — A southern, dark brown, 

 almost black tern, with a whitish crown and a rounded tail. 



The young lacks the 

 whitish crown, but 

 has more or less of a 

 white line over the 

 eye. This is a com- 

 mon summer visitor 

 in the South Atlantic 

 and Gulf States, and 

 jfojj^r breeds in Florida. 



Length, 15 ; wing, lOJ (10-10|) ; tail, 6 ; tarsus, 1 ; culmen, IJ. 

 Tropical regions generally ; in America from Brazil to the southern 

 United States. 



GULLS (SUBFAMILY LARIn^) 



characteristics given on p. 321 

 Key to the Species 



* Hind toe minute or wanting (much less than | inch long) ; tail slightly 



notched or even 14. Kittiwake. 



* Hind toe small. (A.) 



A. Tail forked about 1 inch ; tail feathers rounded at tip 



24. Sabine's Gull. 



A. Tail even. (B.) 

 B. Adults pure white ; tarsus rough behind and less than the middle toe 



and nail in length ; wing, 1.3-14 long 13. Ivory Gull. 



B. Adults with a darker mantle ; tarsus not very rough, and equal to or 

 greater than the middle toe and nail in length. (C.) 

 C. Wing, 8-9i long. The Little Gull (60-1. Larus minittus) of Europe 



has been found once on Long Island. 

 C. Wing over 9J long. (D.) 



D. Wing, 10-lOf long ; bill black and slender 23. Bonaparte's Gull. 



D. Wing, lOf-12 long ; bill red, with usually a dark band near tip 



22. Franklin's Gull. 



D. Wing, 12-1.31 long ; outer primary black 21. Laughing Gull. 



D. Wing over 13| long. (E.) 

 E. Primaries pearl-gray, fading to white at tip, no black. (H. ) 



