1. PODiciPKs. 525- 



Podiceps cliilensis, Go)ilil, Zool. Vol/. Bearjle, pt. iii. Birds, p. 1.'17 

 (1841) [Tierni del iMiogo; Buenos Ayres'l ; Gay, Hid. Chili, Zool. 

 i. p. 404 (1847) ; Ucicheiih. Nafatores, pi." 18. uo. 750 (1850). 



Podiceps rollandi, Gould {nee Q. cS- G.), Zool. T'o;/. Beaqle, pt. iii. 

 Birch, p. 137 (1841) [part] ; G. R. Gray, List of B. pt". iii. p. 151 

 (1844); Fraser, P. Z. 8. 1848, p. 119 [Chili]; Gau, Hist. Chili, 

 Zool. i. p. 463 (1847); Sclat. 8^ Sakmj, P. Z. S.' \8i.8, p. 146 

 [Conchitas]; iid. Ibis, 1868, p. 189 [Straits of Mao-ellan] ; iirl. 

 P. Z. S. 1869, p. 158 [Tuno-asuca] ; iid. B.rof. Orn. ii. p. 190 (1869) 

 [part]; Ihirnf. Ibis, 1877, p. 4^ rClmp.it R.] ; Shnrpe, P. Z. S. 

 1881, p. 17 [S. Chili ; Straits of Slagellaii ; Patagonia]; White, 

 P. Z. S. 1882, p. 629, 1883, p. 43 [Argentine Republic] ; Sclater, 

 P.Z.S. 1883, p. 432 [Chili] ; Barrows, Auk, i. p. 317 (1884) 

 [Lower Uruguay]; Tacz. Oni. Perou, iii. p. 494 (1886); Selat. ^■ 

 Hudson, Arf/ejitine Orn. ii. p. 204 (1889) ; Kerr, Ibis, 1892, p. 151 

 [R. Pilcomavo] : Holland, Ibis, 1892, p. 214 [Argentine Republic] ; 

 Lane, Ibis, 1897, p. 313 [Chili]. 



Rollandia niicra, Bonap. C. P. xlii. p. 775 (1856). 



Podiceps leucotis, Tacz. P. Z. 8. 1874, p, 563 [Central Peru]. 



Adult in hreedimi-plumage. General colour above, including the 

 head and neck, black, with some greenish gloss ; the feathers of the 

 back, scapulars, and base of the fore-neck more or less distincth' 

 edged with sandy-brown ; feathers of the crown lengthened and 

 forming a crest ; ear-coverts pure white ; long feathers of the sides 

 of the crown white with black tips, which partially hide the ear- 

 coverts ; chin, throat, and fore-neck dark sooty-black ; rest of 

 underparts, including the sides and flanks, dull rufous, inclining to 

 vinaceous and with a silky gloss ; the feathers of the sides and 

 flanks with dark blackish extremities, and the breast and abdomen 

 slightly varied with indistinct dusky bars ; primary-quills dark ash- 

 brown, white towards the basal part of the inner web, the amount 

 of white gradually increasing on the inner feathers, the innermost 

 being mostly white ; secondaries pure white, the outermost and 

 innermost with some ash-brown along the shaft and towards the 

 extremity; wing-coverts dark ash-brown. Tris red; bill black; 

 legs and toes slate-colour {H. Whitelei/), grey, dark grey, or olive- 

 green (Dr. Coppinger). Total length about 11 "5 inches, culmen 

 from feathers on forehead 0'65-0'9, wing 4-3-4".5, tarsus 1*4, outer 

 toe and claw 1-9. 



Adult in non-hrecding plumage. Differs from the above in having 

 the feathers of the top of the head much less elongate and edged 

 with sandy-brown like those of the back ; the back of the neck dark 

 sooty-brown and but slightly glossed, the chin and throat pure 

 white : the sides and fore-part of the neck dull rufous buff, and the 

 chest and rest of underparts wliite with a dull vinous tinge. 



As will be seen from the above measurements, the length of the 

 culmen varies considerably among fully adult birds. 



Immature examples resemble the adult in winter plumage, bi t 

 the sides of the head, as well as the chin and throat, are longitudin- 

 ally streaked with brownish black. 



Hah. Central and Southern parts of South America, from Ccntr;:] 



