At other times its cry is harsh and
far from harmonious.
Near Maldonado these birds were
tame and bold; they constantly attended the country houses
in numbers, to pick the meat which was hung up on the posts
or walls: if any other small bird joined the feast, the
Calandria soon chased it away. On the wide uninhabited plains
of Patagonia another closely allied species, O. Patagonica
of d'Orbigny, which frequents the valleys clothed with
spiny bushes, is a wilder bird, and has a slightly different
tone of voice. It appears to me a curious circumstance, as
showing the fine shades of difference in habits, that judging
from this latter respect alone, when I first saw this second
species, I thought it was different from the Maldonado kind.
Having afterwards procured a specimen, and comparing the
two without particular care, they appeared so very similar,
that I changed my opinion; but now Mr. Gould says that they
are certainly distinct; a conclusion in conformity with the
trifling difference of habit, of which, of course, he was not
aware.
The number, tameness, and disgusting habits of the
carrion-feeding hawks of South America make them
pre-eminently striking to any one accustomed only to the birds
of Northern Europe. In this list may be included four species
of the Caracara or Polyborus, the Turkey buzzard, the Gallinazo,
and the Condor. The Caracaras are, from their
structure, placed among the eagles: we shall soon see how
ill they become so high a rank.
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