The food of our Grakle I believe to consist almost, if not quite
exclusively, of insects, worms, &c. Yet I have seen one in March eating
a Seville orange on the tree, tugging out large portions of the pulp,
and swallowing them. But the stomach of this very specimen, which I
shot in the act, was full of comminuted insects. As it was in the midst
of very dry weather, the object may have been the quenching of its
thirst. Robinson in describing the Corato, (_Agave keratto_) notices a
fondness of this bird for its nectar, which may perhaps be similarly
explained. He says of this magnificent plant, (MSS. I. 76.) “the
flowering stem begins to rise about Christmas, and in the beginning of
March, the flowers open. The Mocking-birds are fond of the honey found
at the base of this flower; the Barbadoes Blackbirds are also fond of
it, and between these birds happen great dissensions and bickerings. If
the Blackbirds, which are naturally very loquacious, would fare well,
and hold their tongues, they might feed unmolested. But their incessant
chattering attracts the attention of the Mock-birds, who having at that
time young ones, and being doubly jealous, assault the Blackbirds with
great fierceness and vigour, soon obliging them to quit the plant, and
hide themselves among the trees and bushes.”
Of two which I shot in January, the stomach of one presented a singular
appearance, being stuffed with green herbage, like very fine grass,
chopped excessively small. I had noticed several caterpillars among the
mass, but it was not until I dispersed it in water, that I discovered
it to consist of the contents of the caterpillars’ stomachs, expressed
by the muscular action of the gizzard. There were no less than nineteen
caterpillars, all smooth, and I think grass-eating kinds, some of
which still contained portions of comminuted herbage. The stomach of
the other contained about as many caterpillars, besides other larvæ,
some spiders, a moth, and other insects.
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