68 BIRDS. PALMIPEDES. 51. 52. 



Length 2 feet : extent 3 feet ,5 : weight near 3 pounds. 



Biii b\d(k : iris hazel: bach, quills and tail black : Jcapulars with 

 fquare white fpots, wing-coverts with round ones : breast and belly 

 white : legs dusky, reddish within. 



238. C. septentriortati?. Above dusky-brown with while 

 lines and specks, beneath white : neck with a chesnut- 

 red patch on the fore-part. 



Red-throated Diver. Er.Zool.t.85 Lewint.231. Donovan t. 78. 



Length 2 feet 5 : exterit 3 feet 9 : weight about 3 pounds. 



Bill dark horn-colour: iris hazel: head grey : neck above with 

 whitish lines, on the lower part beneath with dusky lines : quills 

 and tail dusky : sides and thighs with dusky streaks : vent dusky : 

 legs dusky, lighter within. 



51. STERNA. Tern. 



239. St. Boysii. White, crown black : front with white 

 spots : back and wings lead-grey : quills blackish, 

 with white shafts. 



2. Body variegated : ears with a black fpot. 

 Sandwich Tern. Lewin t. 204. Donov t. 120. Walcot. t. 120. 



Bill black: iris dusky '.front fometimes wholly blaek : primary 

 quills, tipt with black, the inner-webs white towards the bafe : tail 

 long, forked, the outer-feathers grey on the outer-webs : legs dusky 

 with a reddish tinge. 



240. St. Hirundo. Bill and legs red : crown and front 

 black : tail forked, the outmost feathers black on the 

 outer webs. 



Common Tern. Er.Zool.t. go. Lewin t. 205. Donov. t. 23. 



Length 14 inches : extent 30 : weight about 4 ounces. 



Bill tipt with black : iris hazel: lower part of the head and alj 

 beneath white : bach and wings lead-grey ; tail white : claws black. 



241. St. minula. Bill and legs yellowish-red: crown 

 black, front white: from the bill to the eyes a 

 black stripe : tail forked, the outmost feathers all 

 white. 



Lessser Tern. Br. Z00L t. go. Lewin t.ic6. Donovan t. g6. 



Length 8 inches and a half: extent near 20 : weight 2 ounces. 



Bill tipt with black : iris dusky : back and wings grey : lower- 

 part of the head and all beneath white : tail white. 



242. St.Jissipes. Black, back and wings grey: vent white: 

 tail slightly forked. 



Black Tern. Lewin t. 207. Donov. t. 74. Walcot. t. 122. 



Length 10 inches : extent 24 inches : weight near 3 ounces. 



Bill black: iris dusky : front and sides of the head fometimes 

 mottled with white : tail grey : legs black. 



52. LARUS. Gull. 

 A. Nostrils covered Kith a cere. 



243. L. Catarractes. Dark-brown, beneath ferruginous- 

 grey : quills and tail white at the base: tail nearly 

 even. 



Skua Gull. Lewin t. 21.2. Walcot t. 117. 



Length 2 feet : extent 4 feet 6 : weight 3 pounds. 



Bill blacl-, much curved at the point; the upper mandible co- 

 vered half way down with a cere : plumage above with dull ferru- 

 ginous margins x front and chin with a grey tinge ; legs black j hinsU 

 tote short. 





