436 
THE LIVING WORLD. 
and will successfully attack animals as large as the kangaroo. It is free from 
the distinctive weakness of the vulture tribe, as it never disgorges. Its head 
and neck are of red and gold, the legs and tail grayish brown or brownish gray. 
The Brazilian Eagle (Morphus unibitinga) feeds mostly upon reptiles. 
It is strictly mono¬ 
gamous, but in case 
of accident, never 
continues to be a 
widow or widower. 
Its strength is enor¬ 
mous, for even when 
heavy from overfeed¬ 
ing, it cannot be held 
by the arms of a man, 
and is notable for its 
diminutive size,which 
is not greater than 
that of a crow. The 
female eagle is much 
the larger and strong¬ 
er of the pair, and 
is fully able to man¬ 
age her helpmeet. 
The Crested 
Eagle, or Harpy 
Eagle (Th rasas tus 
harpyia ), is a terror 
to the sloth, the deer, 
and the opossum. It 
is the most muscu¬ 
lar of the eagle 
family, and though 
less notable in power 
of flight, is remarka¬ 
ble for its ability to 
secure prey. It wears 
on its head a fan¬ 
shaped crest, which 
it erects when aroused 
from its lethargy. 
It is met with as far 
north as Texas. 
The solitary habits 
of the eagle, and its 
limited fecundity 
beyond the needs which 
golden eagle (Aquila chryscstos). 
seem to be a provision against any multiplication 
they serve in the economy of nature. 
The Eagle of the Steppes (.Aquila bifasciata ) is found throughout Tartary, 
and frequently fastens upon and destroys the antelope. The Abbe Hoe, like 
