TROGON MELANOPTERUS, Swains. 
Black-wing-ed Trogxrn. 
(Young male.) 
In the foregoing Plate I have illustrated an adult male and female of this fine species, and in the description 
I have mentioned the great difference in the colouring of the sexes, and the circumstance of the plumage of 
the young male of the year being strictly similar to that of the female ; the present Plate represents a young 
male in the intermediate state, when, as will be perceived, it has partially acquired the rich purple of the head, 
and the mature tail, with the exception of one feather, which still retains the characteristic markings of im¬ 
maturity. I would here repeat that the adult male of this species has the three outer tail-feathers on each 
side black at their base with tips of pure white, while the same feathers in young males of the year, and in 
the females at all ages, are strongly barred with black and white. These changes are always effected by the 
acquisition of new feathers. 
