TERN. . 127 



40— WHITE-WINGED TERN. 



Sterna leucoptera, Tern. Man. d'Orn. p. 483. Id. Ed. 2d. p. 747. 

 Sterna nera, Gerin, v. pi. 544. 



LENGTH nine inches and a quarter. Bill and legs coral red ; 

 irides black ; the head, neck, upper part of the back, breast, under 

 wing coverts, and belly deep black ; the lower part of the back, and 

 scapulars ash-colour; lesser and middle wing coverts, rump, and tail 

 white ; the greater wing coverts and second quills bluish ash ; inner 

 webs of the two first quills striped longitudinally with a white band ; 

 tail very little forked. Young birds have the white on the wing less 

 pure; the tail cinereous ; tip of the bill dusky, and the black of the 

 plumage inclining to ash ; forehead light ash ; and the feathers of 

 the upper parts of the body more or less tipped with whitish ash. 



Inhabits the shores of the Mediterranean Sea, the marshes and 

 rivers beyond the Alps; also the lakes of Lucarno, from Lugano to 

 Como; sometimes seen at Geneva, but not met with in Holland. 



41.— CAYENNE TERN. 



Sterna Cayana, Ind. Orn. ii. 804. Gm. Lin. i. 604. 



Le grand Hirondelle de Mer, Buf. viii. 340. PL enl. 988. 



Le Hatis a derriere de la tete noire, Voy. d'Azara, iv. No. 412. 



Cayenne Tern, Gen. Syn. vi. 352. 



LENGTH about sixteen inches. Bill more than two, and pale 

 orange; hind part of the neck black, mottled with dusky white; the 

 rest of the plumage above blue grey, the feathers edged with rufous ; 

 beneath the body white; tail the same; quills dusky, exceeding the 

 tail in length, which is much forked ; legs reddish brown. 



Inhabits Cayenne. 



