170 
POPULAR HISTORY OF BIRDS. 
The young of the toucans closely resemble their parents 
in colour and brightness^ unlike the young of most birds, 
which are generally jDlain. Thus^ in the Bamjohastos dicolo- 
ms (Plate XII. fig. 1), the brilliant orange-and-yellow gor- 
get of the adult is, in tint and form, the same as in the 
young; and the scarlet carmine of the under parts is of 
the same brilliancy in young and old. 
It is curious, in these birds, to see the prevalence of par- 
ticular shades of colour in different groups ; thus, in the 
subgenus Andigena, — so named from the species frequenting 
mountain-forests among the Andes, — a peculiar bluish-grey 
colour runs over the under parts. The Pteroglossi have 
often the under parts banded with red, black, and yellow. 
The species of Aulacorhynclius are generally green, and must 
look particularly curious among trees, their differently-co- 
loured bills and their motions serving to distinguish them 
from the trees among which they live. The feathers on the 
head of one of the species of toucan have the greater part of 
their shafts flattened and curled, and give the bird the ap- 
pearance of being ornamented with narrow ribands [R, ulo- 
comm, Plate XII. fig. 2). 
The family Psittacid^e contains all the Parrots, Cockatoos, 
Lories, and Parrakeets, and has representatives in every 
