464 BIRDS OF BRITISH GDIANA. 



ear-coverts and sides of face pale brown with pale shaft- 

 lines to the feathers; throat, middle of abdomen, and thighs 

 cream-white ; breast, sides of body, and under tail-coverts pale 

 ochreous-brown ; axillaries and marginal under wing-coverts 

 yellow ; inner under wing-coverts white ; under surface of flight- 

 quills hair-brown paler on the inner edges ; lower aspect of tail 

 pale hair-brown. 



Total length 171 mm., exposed culmen 13, wing 70, tail 84, 

 tarsus 25. 



The specimen described above was collected at Bartica in 1911. 



Adult female. Similar in plumage to the adult male but 

 smaller. Wing 64 mm. " Upper mandible black with yellow 

 at the sides, lower mandible yellow ; iris purplish brown ; legs, 

 toes, and claws brownish flesh " {H. Whiteli/). 



There are three young birds of this species, two from the Abary 

 River and one from the Ituribisi River, all of which have ochreou?- 

 brown margins to the feathers. The specimens collected on the 

 Abary were obtained in July and November. The July bird is 

 almost uniform yellow below, while the November one has the 

 throat whitish, darker and inclining to ochreous on the breast and 

 sides of the body, some of the feathers on the flanks have dark 

 shaft-lines ; in this individual the tail is fully developed but not in 

 either of the others. The bird from the Ituribisi differs from the 

 other two in being much paler yellow on the under surface and in 

 having blackish centres to the feathers on the breast. 



Breeding-season. Unknown in British Gruiana. 



I^est. Unrecorded in British Gruiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Mount Roraima, Upper Takutu 

 Mountains, Ituribisi River, Supenaam River, Bartica, Makauria 

 River, Abary River {Mc Connell collection) ; Mount Roraima, 

 Merum^ Mountains {Whitely). 



Extralimital Range. Venezuela, Colombia. 



Habits, Unrecorded in British Guiana. 



