138 DUTCHESS Oi RIVOLl’s HUMMING-BIRD. 
upon the throat and forepart of the neck lengthways 
on each side. The feathers composing this part, as in 
the greater number of other species, present the scaly 
form, and to the touch feel soft like velvet. The 
upper parts of the neck, back, rump, and lesser wing- 
coverts, are bright golden green ; the forepart of the 
throat, and lower parts, are greenish, mingled with 
gray, becoming whitish as they approach the tail. 
The young birds have the upper parts of a duller 
tinge, beneath gray, and the scaly patch is much less 
brilliant, and loses the scaly texture of the feathers. 
