190 
PHYSICAL HISTORY OF THE 
At night they roost in pairs, but in the day¬ 
time are always in larger companies. In their 
appearance they have something of the charac¬ 
ter of both the pheasant and peacock, and 
yet do not closely resemble either. It is a 
curious fact, that, with the exception of some 
small partridge-like gallinaceous birds, all the 
representatives of this family in Brazil, and 
especially in the Valley of the Amazons, 
belong to types which do not exist in other 
parts of the world. Here we find neither 
pheasants, nor cocks of the woods, nor grouse ; 
but in their place abound the Mutun, the Jayu, 
the Jacami, and the Unicorn (Crax, Penelope, 
Psophia, and Palamedea), all of which are so 
remote from the gallinaceous types found far¬ 
ther north, that they remind one quite as 
much of the bustard, and other ostrich-like 
birds, as of the hen and pheasant. They 
differ also from Northern gallinaceous birds 
in the greater uniformity of the sexes, none of 
them exhibiting those striking differences be¬ 
tween the males and females which w r e see in 
the pheasants, the cocks of the woods, and in 
our barn-yard fowls. While birds abounded 
in such numbers, insects were rather scarce. 
