72 BIRDS OF BRITISH GUIANA. 



Young birds differ in being paler brown above and in the 

 absence of tlie black throat and grey breast, which are pervaded 

 with sandy buff like the greater part of the under surface. 



The male bird described above was taken at Bartica in 1911. 



Breeding-season. Unrecorded in British Guiana. 



JS^est. Unknown in British Guiana. 



Eggs. Undescribed from British Guiana. 



Hange in British Guiana. Bartica (^McConnell collection). 



Ed'tralimital range. Peru, Ecuador, Colombia, Trinidad, West 

 India Islands, Central and North America. 



Habits. Unrecorded in British Guiana. 



40. Porzana albicollis. 

 White-necked Crake. 



Porzana albicollis (Vieill.), N. Diet. d'Hist. Nat. xxvlii. p. 561, 1819 

 (Paraguay) ; Salvin, Ibis, 1886, p. 176 (lloraima, 3000 ft.) ; Sharpe, 

 Cat. B. Brit. Mus. xxiii. p. 102, 1S94 (Georgetown, Koraima) ; 

 Brabourne & Chubb, B. S. Amer. i. p. 24, no. 239, 1912. 



Crex mustelina Licht., Cab. in Schomb. Reis. Giiian. iii. p. 760, 1848. 



Adult male. Entire upper surface including the head, back, 

 wings, and tail black, the feathers ever^'where edged wdth olive- 

 brown, narrowly on the head and more broadly on the back and 

 wings; bastard-wing, primary-coverts, and quills uniform brown; 

 throat white ; breast and abdomen bluish grey ; lower flanks, 

 vent, and under tail-coverts blackish barred and edged with white; 

 under wing-coverts and axillaries pale brown edged with white. 

 '•Bill green; eye reddish hazel; legs, toes, and claws purplish 

 brown" (/y. Whiti'ly). 



Total length 190 mm., cuhnen 27, wing 105, tail 43, tarsus 36, 

 middle toe and claw 43. 



Adidt female. Similar to the adult male. Wing 99 mm. 



The male bird described was collected on the Ituribisi Biver in 

 October 1908. 



Breeding-season. Unrecorded in British Guiana. 



Nest. Its nesting-})lace is in the grass (Schondjurgk). 



Eggs. Undescribed from British Guiana. 



liange in British Guiana. Ituribisi River, Bartica, Bonasika 

 River, Abary River, Essequebo JMxQvi^McConnell collection); Mount 

 Roraima, Annai {Whiteh/); Georgetown (British 2Juseuni). 



Extralimital Range. Trinidad, Venezuela, Brazil, Paraguay. 



IJahifs. According to Schomburgk (Reis. Guian. iii, p. 760) 

 this bird is fairly common in plantations and grazing lands near 



