184 
WHITE-COLLARED HUMMING-BIRD. 
others; the remaining part of the tail, which is of the 
same form as in the male, is narrowly tipped with 
white, succeeded by a band of rich blue, the outer web 
of the outer feathers being the only other white portion. 
The under parts are gray ; the feathers on the throat 
assuming the scaly texture, and marked in the centre 
of each with a darker colour. The same naturalist 
mentions a specimen in the Paris Museum, with the 
centre tail feathers black ; and a specimen, in our own 
possession, has the tips of the tail feathers black for 
nearly half an inch- These may perhaps agree with 
Latham’s spotted- necked humming-bird, Trockttus 
fimbriatus. We are almost inclined to think, that the 
white of the tail becomes perfect as they advance in 
age, like the same colour in many other birds. 
It has been found in Cayenne and Surinam, and 
several of the West Indian Islands. The specimens 
which served for the accompanying plate, are from 
Tobago, where it is said to be found chiefly in low 
marshy situations, among the plantain bushes, in 
company with the sabre-wing, feeding constantly on 
the wing. 
