No Doubt
There Must Exist Some Good Reason; But The Inhabitants Of
The Country Are Quite Ignorant Of It.
The only fact which
I know analogous to it, is the habit of that extraordinary
Australian bird, the Calodera
Maculata, which makes an
elegant vaulted passage of twigs for playing in, and
which collects near the spot, land and sea-shells, bones
and the feathers of birds, especially brightly coloured
ones. Mr. Gould, who has described these facts, informs
me, that the natives, when they lose any hard object,
search the playing passages, and he has known a tobacco-
pipe thus recovered.
The little owl (Athene cunicularia), which has been so
often mentioned, on the plains of Buenos Ayres exclusively
inhabits the holes of the bizcacha; but in Banda Oriental it
is its own workman. During the open day, but more especially
in the evening, these birds may be seen in every direction
standing frequently by pairs on the hillock near their
burrows. If disturbed they either enter the hole, or, uttering
a shrill harsh cry, move with a remarkably undulatory
flight to a short distance, and then turning round, steadily
gaze at their pursuer. Occasionally in the evening they may
be heard hooting. I found in the stomachs of two which
I opened the remains of mice, and I one day saw a small
snake killed and carried away. It is said that snakes are
their common prey during the daytime. I may here mention,
as showing on what various kinds of food owls subsist,
that a species killed among the islets of the Chonos
Archipelago, had its stomach full of good-sized crabs.
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