186 



IARTD2E. 



Sterna dougalli, Mont. 



Sterna dougalli, Thien. Fortpjlanz. ges. Vog. tab. Ixxxv. fig. 2, a-d 

 (1845-54) ; Hewitson, Eggs of Brit. Birds, ii. 479, pi. cxxxii. fig. i 

 (1856) ; Dresser, Birds Eur. viii. p. 273 (1876) ; Legge, Birds Ceyl. 

 p. 1033 (1880) : Baird, Brewer Ridgw. Water Birds N. Am. ii. 

 p. 303 (1884) ; Seebohm, Brit. Birds, iii. p. 277, pi. 46 (1885) ; Oates 

 ed. Hume, Nests 8f Eggs Ind. B. iii. p. 301 (1890) ; Seebohm, Eggs of 

 Brit. Birds, p. 101, pi. 29. figs 7, 9 (1896) ; Saunders, Cat. Birds 

 B. M. xxv. p. 70 (1896) ; Sharpe, Hand-l i. p. 135 (1899). 



Sterna gracilis, Gould, Handb. Birds Austr. ii. p. 399 (1865). 



The eggs of the Boseate Tern resemble those of the Common and 

 Arctic Terns and pass through the same variations of shape and 

 colour. They measure from 1-45 to 1-85 in length, and from 1-06 

 to 1-22 in breadth. 



1. Cato Bank, North America. 



2. Massachusetts (T. M. B reiver). 



3. Muskegett Island, Massachusetts. 



1. Goose Island, Connecticut, 18th June 



(O. N. Brooke: Henshaw Coll.}. 

 3. Florida Cays. 

 3. Glashedy, Ireland, May. 



1. Wideopens, Farn Islands, 23rd June 



(O. Salvin). 



2. Farn Islands (F. Bond}. 



2. Coast of Wales, June. 



3. Cornwall. 



3. Andaman Islands, June (R. J. 



Wimbcrley}. 

 2. Bird Island, Australia (/. Macgilli- 



vray}. 



2. Cape York, Australia. 

 7. New Caledonia, 1st Jan. 



3. New Caledonia (J. Macgillivray}. 



Saunders Coil. 

 Salvin-Godman Coll. 

 Saunders Coll. 

 Salvin-Godman Coll. 



Saunders Coll. 

 Saunders Coll. 

 Salvin-Godman Coll. 



Saunders Coll. 

 J. T. Proud, Esq. [P.]. 

 D. W. Mitchell, Esq. [P.]. 

 Saunders Coll. 



Gould Coll. 



Gould Coll. 

 Saunders Coll. 

 Salvin-Godman Coll. 



Sterna cantiaca, Gm. 



Sterna cantiaca, Thien. Fortpjlanz. ges. Vog. tab. Ixxxiii. fig. 3, a-h 

 (1845-54) ; Hewitson, Eggs of Brit. Birds, ii. p. 478, pi. cxxxii. 

 figs, ii, iii (1856) ; Dresser, Birds Eur. viii. p. 301 (1877) ; Seebohm, 

 Brit. Birds, iii. p. 272, pi. 48 (1885) ; id. Eggs of Brit. Birds, p. 100, 

 pi. 30. figs. 1-3 (1896) ; Saunders, Cat. Birds B. M. xxv. p. 75 

 (1896) ; Sharpe, Hand-l. i. p. 135 (1899). 



Thalasseus cantiacus, Baedeker, Eier Eur. Vog. tab. 24. fig. 2 (1855-63). 



Thalasseus acuflavklus, Salvin, Ibis, 1864. p. 386. 



Sterna sandvicensis acuflavida, Baird, Brewer fy Ridgw. Water Birds 

 N. Am. ii. p. 288 (1884). 



The eggs of the Sandwich Tern vary from a pointed oval form 

 to pyriform. The ground ranges from white, through cream-colour 

 and pale buff, to brownish buff. The markings are very bold as a 

 rule and consist of spots and blotches of dark brown approaching 

 black, and underlying inky-purple. The size, shape, and distribu- 

 tion of the markings of both kinds present almost endless variations. 



