VAVASOURIA. 321 



mottlings do not appear, but the feathers have grey margins 

 which are sometimes tinged with yellow. Caruncle 75 mm. 



The specimen described above was collected on the Cotinga 

 River. 



The young male in its first plumage is similar to the adult 

 female. 



Breeding-season. Unknown in British Guiana. 

 I^est. Unrecorded in British Guiana. 

 Eggs. Undescribed from British Guiana. 



Range in British Guiana. Cotinga River, Supenaam River 

 {McConnell collection) ; Mount Roraima and Burro-Burro River 

 {Brown) ; 'Mount Roraima, Meruin6 Mountains, Kamarang 

 River {Whitely) ; Upper Berbice River, Great Falls Pemerara 

 River (Quelch). 



Extralimital Range. Cayenne {Boddaert) ; Surinam (Bartlett) ; 

 Venezuela. 



Habits. Brown (Canoe and Camp Life, p. 181) gives the 

 following note on his experience of this bird on the Burro-Burro 

 River: — "On the way we heard numbers of Bell-birds (Casmo- 

 ryhnchus carunculatus) calling in the surrounding forest ; wishing 

 to obtain one, I landed, and, guided by their calls to their vicinity, 

 stood for some time under a tree in which one was perched before 

 I discovered its whereabouts. The one I shot proved to be a 

 male in full plumage, of a snow-white colour, with black beak 

 and eyes, and with a black, leathery excrescence of nearly an inch 

 in length, rising up from the top of the base of its bill. When 

 close to these birds the sounds ihey produce are of two kinds — one 

 resembling the word Ddr-bng and the other Kong-kay, the latter 

 syllable of each being prolonged. There is a sort of ventriloquism 

 about the utterance of Uor-ong, which is made when the bird holds 

 its head up, that renders it almost impossible to find the exact 

 whereabouts of the bird when using this form of call ; when, how- 

 ever, it puts its bill and head downwards, and calls Kong-kay, it 

 can be seen at once." 



Concerning this bird Schomburgk wrote (Reis. Guian. i. p. 430): 

 " I once tried a long shot at an individual of this species. It 

 was resting and singing on a dead twig of a very tall tree, but 

 the bird flew away unhurt. I was much annoyed at having failed, 

 but the Indian suggested that I should wait, as the bird, he said, 



VOL. II. Y 



