Cassell's book of birds; vol. 1Brehm, Alfred Edmund
Science
Cassell's book of birds; vol. 1
Brehm, Alfred Edmund
Birds
Amongst the very numerous Passerine races, we find some that might be
called the PARROT-FINCHES, for the same reason that we call the little
"Love Birds" SPARROW PARROTS; indeed, the resemblance they bear to the
parrots is very striking, as is seen not only in the contour of their
body, but in its structure, as well as in their demeanour and peculiar
habits. Such, for example, are--
[Illustration: THE LARGE-BEAKED CROSS-BILL (_Loxia pityopsittacus_).]
* * * * *
The CROSS-BILLS (_Loxiæ_), which, although but few species are known,
may be said to form a separate family. They not only differ from other
Passeres, but from all other birds, in the formation of their beak. This
very remarkable instrument is thick and strongly arched, its ridge or
culmen is high and rounded, the mandibles are broad at their origin, but
suddenly separate, and terminate in sharp points that are bent across
each other, the under-jaw being inclined sometimes to the right side,
sometimes to the left, without any general rule being observable in this
respect; there are, indeed, as many that have their beaks twisted to the
right as in the opposite direction. It is, moreover, specially noticeable
that the muscles moving the lower jaw are unequally developed on the two
sides of the head, an arrangement which must be considered as a necessary
consequence of the sidelong movements of the jaw. The head is large in
comparison with that of other finches, the body short, but slender and
high; the keel of the breast-bone is long and arched, resembling that
of the woodpeckers. The plumage is thick and soft, the wings of middle
length, narrow, and pointed; the tail-feathers strong, narrow, and short,
those at the side being considerably longer than those in the middle. The
tarsi and bones of the leg are bowed inwards, and are short and strong;
the toes long, with stout, curved, pointed claws. The eyes are small and
prominent; the nostrils round, placed close to the forehead, and almost
or entirely covered with hair-like feathers. The internal construction of
the body does not differ from that of other birds of this order.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account