188 INDIAN' DICKS. 



Genus QUERQUEDFLA. 



The distinctive feature of the genus Qaertjuedula is tho bright blue- 

 grey colour of the wing-coverts, which in two species, d'lscors and 

 cijanoptera, are a bright snialt-ljlue. The Common Teal (JVettion crecca) 

 used to be placed in this genus ; but Nettioti differs from Querqiipdula in 

 the shape of the bill, which is equal in Ijreadth throughout its length, 

 whereas in the latter it is slightly broader at the tij), and also has the nail 

 somewhat larger in proportion. 



The internal structure is also different, the labyrinth of the trachea 

 being differently formed, ])eing enlarged on Ijoth sides downwards in 

 Querquediila, but on one side only and upwards in Settion. 



There are five species, of which four are confined to America, the fifth 

 alone visitino- India in winter. All five are birds of much the same size. 



(:32) QUERaUEDULA CIRCIA. 

 THE GAKGAXEY on BLUE-WING TEAL. 



Anas circia, Legale, B. of Cey. p. 1080. 



Cluerquedula circia, Jei-don, B. I. iii, p. 807 ; Hume, Xests S,- Efjrjs, p. 644 ; 



Harae, Str. Feath. i, p. 262 ; Adam, ibid. p. 402 ; Hume, ibid, iii, p. 1U3 ; 



Le Jles. ibid. p. 382 ; Butler, ibid., iv, p. 30 ; Sadly, ibid. p. 201 ; Butler, 



ibid. V, p. 234 ; Hume ^- Davison, ibid, vi, p. 489 ; Butler, ibid, vii, p. 188 ; 



Ball, ibid. p. 232; Gripps, ibid. p. 312; Hume, ibid. p. 494; id. Cat. 



no. 965; id. Str. Feath. viii, p. 115; Scully, ibid. p. 363; Hume 6)- Mar. 



Garae-B. \\\, Yi. 2\b ', Vidal, Str. Feath. ix, p. 93; Butler, ibid. p. 438; 



Reid, ibid, x, p. S3 ; Hume, ibid. p. 418 ; Oates, B. of Brit. Burm. ii, p. 286 ; 



Barnes, B. of Bom. p. 410 ; Hume, Str. Feath. xi, p. 346 ; id. Nests S,- Eggs 



{Oates ed.),m, p. 291; Salvadori, Cat. B. M. xxvii, p. 293; Blanford, 



Fauna B. I. iv, p. 449 ; Oates, Game-B. ii. p. 119. 



Description. Adult male. — Crown and nape deep brown, lighter on the 

 forehead, where it is more or less streaked with white, and sometimes with a 

 faint gloss at the sides. A broad superciliary stripe from in front of the eye, 

 down the sides of the nape, white ; chin black ; remainder of the head and neck 

 rich bright chocolate streaked \\-ith white : back, rump, iipper tail-coverts and 

 tail brown, the feathers all edged paler or greyish-brown ; inner scapulars black. 



