AUDEBERT'S HUMMING-BIRD. . 113 



The young of the first year have the head brown, 

 the under parts of a clear grey, covered with a collar 

 of golden green upon the higher part of the breast. 

 This species inhabits Brazil. 



AUDEBERT'S HUMMING-BIRD. 



Trochilus coervleus AUDEBERT. 



Trochilus c&T\ileu$,Audebert, Olseaux dortes, pi. 40 I/Oi- 

 seau-mouche Audebert, Lesson, Histoire Naturelle des 

 Oiseaux-moucheS) 164. pi. li. 



THIS species, to which Lesson has applied the 

 title of Audebertii, though described by that natu- 

 ralist under another name, is closely allied to T. bi- 

 color, and is introduced by Buffon as a variety of it. 

 The upper parts are of a dull green, the lower parts, 

 except the throat and vent, bright emerald green ; 

 the throat is a rich sapphirine blue, and the vent aud 

 under tail -co verts are white. The form of the tail 

 differs from that of the T, bicolor, being completely 

 rounded at the tip ; above and below it is of a deep 

 and dull blue. It is a native of Guiana. 



There are yet two birds to be introduced here, 

 which, as far as we can judge without an examina- 

 tion of specimens, are much allied to those just de- 

 . scribed, and of which Plate xvi. will give some idea 

 of the form. They both appear to have been unfi- 

 gured before the beautiful work of Lesson gave us 



VOL. VII. u 



