Terna 



69. Forster Tern {Sterna forstert). L. 15; T. 7j 



forked. 4.^ Ads., summer. Inner web of outer tail 

 feather Ausky; \}%\ow pure white; bill orange, blactrish 

 at end; crown black; back pearl. Ads., winter. 

 Crown white or grayish; a large black spot about eyes; 

 bill black. Yng. Similar to winter ad. but 

 above with brownish. rJotes. A lung drawn, deep, 

 reedy cock and tweet-tweet-tweet-tveet. 



Range, — North, America; breeds locally north (o California, and 

 from 1 exas ainng coast to Virginia and in Interior to Manitoba; wan- 

 ders to Massarhiisptts: wlntpr? from southern California and Texas 

 south to Brazil. 



70. Common Tern (Sterna hirundd). L. IS; T. 5.5. 

 forked, 3.2 Ads., summer. Outer web of outer tail 

 featiier dusky; below white, washed with dusky; bill 

 ^■^ii, blackish at end; crown black; back pearl. Ads., 

 winter. Forehead and underparts white; bill black. 

 Yng. SimlJarto last, but above with lirownish; tail 

 shorter. Notes, A vibrant, purring, taarrr, and other 

 calls. 



Range.— ^Nurlhein hemisphere; In America, chiefly east of Plains; 

 breeds Kvi;iilly uii tya:>tand in Interior from Gulf States to Barren 

 CiOunds and Greenland; whilers iuutliof United States lo Brazil. 



71. Arctic Tern {Sierna paradisiAia). L. 11^.5; T. 

 7.2 forked 4.5. Similar to No. 70, but summer ad. 

 with hill whoLly bright red; tail longer; tarsus shorter, 

 .6 instead of .7. Notes. Like tearr of No. 70, but 

 shriller, ending in rliiing inflectionj Ukc squeal of a 

 pig, (Brewster.) 



Range. — Northern hemisphere; breeds from Massachusetts north 

 to Greenland and nonhwesc to Aleutian Islands and Alaska; winters 

 south to California and VIrg-lnla. 



72. Roseate Tern {Sterna Jougalli). L. 15.5; T. 7.5, 

 forked, 5.2, Ads., summer. Bill black, reddtsh only at 

 the base; belore white tinged with shell pink; tail wholly 

 white; crown black; back pearl. Ads., winter. Fore- 

 head with white; no pink below. Notes. A reedy 

 each. 



Rang*, — Temperateand tropical reelons; breeds in North America 

 on east ctast only, from Florid^ north to Nova Scotlfl; lare north of 

 Vii);inla; winters south of tjnited States to Venezuela. 



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