154 DAVID'S HUMMING-BIRD. 



ed above, and beneath of a paler shade, tinted with 

 yellow. The auriculars are of the same deep colour 

 with the upper parts, and form a patch on the cheek, 

 surrounded on the under part with a brighter shade. 

 The tail is regularly graduated, the centre feathers, 

 though longer, not far surpassing the others. It in- 

 habits Cayenne. 



These are all the birds which Lesson includes in 

 this form. The others do not possess any particular 

 elongation of the centre tail feathers. The first we 

 shall mention is the 



