810 STERNA 



temperate Asia, passing south on passage and in winter to 

 China, India, and the Malay Peninsula ; North America from 

 Labrador to Texas, ranging south to Bahia, Brazil, in winter ; 

 rare on Pacific coasts. 



In habits the Common Tern does not differ from the Arctic 

 Tern, but it is less marine in the choice of habitat and is often 

 found on rivers, lakes, and inland ponds. Its food and nest are 

 also similar, but its note is somewhat harsher. Its eggs 

 resemble those of S. macrura, and are also subject to con- 

 siderable variation, but are as a rule a trifle larger, averaging 

 about 1-59 by 119. 



1115. NORDMANN'S TERN. 

 STERNA LONGIPENNIS. 



Sterna longipennis, Nordmann, in Ermans Reise, p. ]7 (1835) ; Middend. 

 Sib. Reise, p. 246, Tab. 25, fig. 4 ; David and Oust. Ois. Chine, 

 p. 526 ; Seebohm, B. Jap. Emp. p. 296 ; Saunders, Cat. B. Br. Mus. 

 xxv. p. 67 ; Blanford, F. Brit. Ind. Birds, iv. p. 319 ; S. 

 camtschatika, Kittlitz, Denkw. Reise, i. p. 322, and ii. p. 200 (1858) ; 

 Tacz. F. 0. Sib. 0. p. 1011. 



$ ad. (Amoor). Intermediate between S. fluviatilis and S. macrui-a, 

 having like the former the under parts vinaceous grey ; the upper parts 

 slightly darker than the latter species ; stripe on the inner web of outer 

 primaries as broad as in S. fluviatilis ; bill black ; legs blackish ; iris 

 dark brown. Culmen 1'6, wing 10*6, tail 7'1, tarsus 0*75 inch. 



Hob. Eastern Siberia, north to Kamchatka ; Japan ; China ; 

 Ceylon ; in winter migrating as far south as New Guinea. 



In habits, food, and nidification, this Tern does not differ 

 from S. macrura. Its eggs, from Kamchatka, are described as 

 being rather less marked than those of that species, and measure 

 about 1-55 by 112. 



1116. ROSEATE TERN. 

 STERNA DOUGALLI. 



Sterna dougall'i^ Montag. Orn. Diet. Suppl. (1813) ; Naum. x. p. 78, 

 Taf. 251 ; Hewitson, ii. p. 479, pi. cxxxii. fig. 1 ; Gould, B. of E. v. 

 pi. 418 ; Dresser, viii. p. 273, pi. 581 ; Saunders, Cat. B. Br. Mus. 

 xxv. p. 70 ; id. Manual, p. 645 ; Lilford, vi. p. 15, pi. 7 ; Blanford, 

 F. Brit. Ind. Birds, iv. p. 319 ; Kidgway, p. 44 ; S. paradisea, 

 Keys, and Bias. Wirbelth. Eur. p. 247 (1840, nee. Briinn.) ; Gould, B. 

 of Gt. Brit. v. pi. 71 ; Tacz. F. 0. Sib. 0. p. 1008; S. gracilis, 

 Gould, P.Z.S. 1845, p. 76 ; id. B. of Austral, vii. pi. 27. 





