The Poor Animal, On The One Hand, With
Its Ears Down And Its Back Arched; And, On The Other, The
Hovering Bird, Eyeing At The Distance Of A Yard The Disgusting
Morsel, Form A Picture, Which Has Been Described By Captain
Head With His Own Peculiar Spirit And Accuracy.
These
false eagles most rarely kill any living bird or animal; and
their vulture-like, necrophagous habits are very
Evident to
any one who has fallen asleep on the desolate plains of
Patagonia, for when he wakes, he will see, on each surrounding
hillock, one of these birds patiently watching him with an
evil eye: it is a feature in the landscape of these countries,
which will be recognised by every one who has wandered
over them. If a party of men go out hunting with dogs
and horses, they will be accompanied, during the day, by
several of these attendants. After feeding, the uncovered
craw protrudes; at such times, and indeed generally, the
Carrancha is an inactive, tame, and cowardly bird. Its
flight is heavy and slow, like that of an English rook. It
seldom soars; but I have twice seen one at a great height
gliding through the air with much ease. It runs (in
contradistinction to hopping), but not quite so quickly as some
of its congeners. At times the Carrancha is noisy, but is
not generally so: its cry is loud, very harsh and peculiar, and
may be likened to the sound of the Spanish guttural g, followed
by a rough double r r; when uttering this cry it
elevates its head higher and higher, till at last, with its
beak wide open, the crown almost touches the lower part of
the back. This fact, which has been doubted, is quite true;
I have seen them several times with their heads backwards
in a completely inverted position. To these observations I
may add, on the high authority of Azara, that the Carrancha
feeds on worms, shells, slugs, grasshoppers, and frogs; that
it destroys young lambs by tearing the umbilical cord; and
that it pursues the Gallinazo, till that bird is compelled to
vomit up the carrion it may have recently gorged. Lastly,
Azara states that several Carranchas, five or six together,
will unite in chase of large birds, even such as herons. All
these facts show that it is a bird of very versatile habits and
considerable ingenuity.
The Polyborus Chimango is considerably smaller than the
last species. It is truly omnivorous, and will eat even bread;
and I was assured that it materially injures the potato crops
in Chiloe, by stocking up the roots when first planted. Of
all the carrion-feeders it is generally the last which leaves
the skeleton of a dead animal, and may often be seen within
the ribs of a cow or horse, like a bird in a cage. Another
species is the Polyborus Novae Zelandiae, which is exceedingly
common in the Falkland Islands. These birds in many
respects resemble in their habits the Carranchas.
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