156 akdi;ti).^. 



■with a tinge of yellow ; iris dull crimson " (//. Durnford). Total 

 length about 24 inches, culmen 3-2, wing 13-3, tail 5-4, tarsus 3-5. 

 Hah. South America, from the Falkland Islands to Patagonia 

 and Chili, northwards to Peru and Central Brazil. 



a, b. S ad. et juv. Tinta, Peru, June, Julv (if. Tweeddale Coll. 

 sk. Whit eh/). 



c. c? ad. sk. Tmia., ixily 2':i {H. Whitehj). Salvin-Godman Coll. 



d. Juv. sk. Lake Titicaca, Peru. Salvin-Godnian Coll. 

 e,f. Ad. sk. Bolivia {U. Forbes). Salvin-Godman Coll. 

 (/-I. c? ad. et juv. ; Sacaya, Tarapaca, Jan. to Berkeley James Coll. 



m. 2 ad. sk. April, 



w. 2 juv. sk. Lomas de Zamora, Buenos Sclater Coll. 



Ayres, Sept. {F. With- 

 imiton). 

 0, p. Ad. sk. Falkland Islands. Salvin-Godman Coll. 



y. 5 juv. sk. Falkland Islands. Voy. II.M.S. 'Chal- 



lenger.' 

 r. (S nd. sk. Falkland Islands. Antarctic Exped. 



s. cJjuv. ; t. 2 Falkland Islands, Nov., Dec. Antarctic Exped. 



ad. sk. 

 u. 2 ad. ; V. Juv. Berkeley Sound, East Falk- Antarctic Exped. 

 sk. lands, Dec. 



3. Nycticorax cyanocephalus. 



Ardea cyanocephala, Molma, Saggio St. Chili, p. 260 (178(3). 

 Ardea nycticorax (nee Liniu), Kittl. Kiipf. Vciy. pt. 3, p. 26, Taf. 35 



fig. 1 (1833). 

 Nycticorax americanus (wee Bp.), Gould in Danvin\ Vug. ' Beagle^ 



Birds, p. 128 (1841 : Valparaiso). 

 Nycticorax cyanocephalus, Fraser, P. Z. S. 1843, p. 116 (Chili). 

 Nycticorax garden! (pt.), Grag, List Grail. Brit. Mxs. p. 85 (1844). 

 Nycticorax naivius (nee Bodd.), Gag, Fami. Chit., Zool. i. p. 412 



(1847). 

 Nycticorax obscurus, Licht. Nomencl. Av. Mus. Berol. p. 90 (1854 : 



Chili); Bj}. Consp. Av. ii. p. 141 (1855); id. Comj)t. Rejid. xl. 



p. 723 (1855) ; Scl. P. Z. S. 1807, pp. 334, 339 (Chili) ; Scl. c^ Salo. 



Ibis, 1868, p. 189 (Oazy Harbour, Str. of Magellan) ; Reichen. 



J.f. O. 1877, p. 238 ; Scl. Sr Salv. P. Z. S. 1878, p. 436 (Tom 



Harbour, Puerto Bueno) : Sharpe, P. Z. S. 1881, p. 12 (Cockle 



Cove). 

 Ardea obscura, Schl. Mus. Pags-Bas, Ardese, p. 59 (1863). 

 Nyctiardea obscura (pt.), Grag, JIand-l. B. iii. p. 33, no. 10176 



(1871). 



Adult male. Similar to N. nycticoraa-, but larger and everywhere 

 darker, the wings dark slaty brown ; the sides of the face, neck, 

 and entire under surface of body sooty-grey ; no white on the fore- 

 head, and only a sooty-brown streak in front of the eye : " bill 

 horn-colour ; feet dark grey ; iris orange " (Dr. Cojijunger). Total 

 length about 24 inches, culmen 3, wing 11-3, tail 4"G, tarsus 3-2. 



Adidt female. Similar to the male: '' bill dark horn-colour; feet 

 dark grey ; iris orange " (Ccq^pinr/er). Total length about 24 inches, 

 culmen 2-8, wing 12-8, tail 5, tarsus 3-3. 



Young. Similar to the young of A', nycticorax, but everywhere 



