346 WHITE-BILLED HUMMING-BIRD. 



cinnamon or ferruginous colour, and on each side 

 the neck, pointing backwards, and extending to a 

 very considerable distance, is a tuft or series of 

 numerous, unequal, lengthened plumes, of a bright 

 rufous colour, rather paler towards the end, and 

 terminating in a dilated tip of a deep but lucid 

 gold-green colour. In the young bird these plumes 

 are shorter and broader than in the full-grown one, 

 and of a gilded copper-green cast. The female is 

 of similar colour to the male, but more of a rufous 

 cast beneath, and is destitute both of the crest 

 and side-plumes which form so conspicuous an or- 

 nament in the male. This species is a native of 

 Guiana. 



WHITE-BILLED HUMMING-BIRD. 



Trochilus albirostris. T, m'gricans, gula aureo-viridi pennis alUdo 



Jimbriatis^ rostrofemoribus crissoque alhis. 

 Blackish Humming-Bird, with gold-^reeii throat, each featlier 



edged with grey, and white bill, thighs, and vent. 

 L'Oiseau-mouche a bee blanc. Viell. pi. 45. 



This Monsr. Viellot describes as a new species. 

 Length three inches and a quarter : colour above 

 brown, the crown of the head glossed with dark 

 carmine-colour, and the back slightly gilded: bill 

 white, with a black tip : neck, throat, and breast 

 green-gold, each feather edged with pearl-grey: 

 abdomen brown, but with a mixture of gold in 

 particular lights : wings and tail violet brown, the 

 latter rufous at the tip : wings extending beyond 



