Cassell's book of birds; vol. 2Brehm, Alfred Edmund
Science
Cassell's book of birds; vol. 2
Brehm, Alfred Edmund
Birds
in which it is common; by some it is known as the "Devil's Steed," by
others as the "Bird of Fate." We must own that to us these fanciful
appellations are quite unintelligible, nor has any Eastern tale we have
ever read thrown a light upon their origin; nevertheless our unpoetical
imagination at once recognises the appropriateness of its nickname of
the "Secretary," as the crest upon its head when laid back looks most
comically like the pen stuck behind the ear of some scrivener's clerk.
[Illustration: THE SECRETARY OR CRANE VULTURE (_Gypogeranus
serpentarius_).]
* * * * *
The VULTURES (_Vulturidæ_) are the largest of all the many varieties
of Birds of Prey, some of the smaller members of this family being
comparable in size with the largest Eagles. The body of the Vultures is
short, broad-breasted, and very powerfully framed; the neck is long, and
often quite bare; the head sometimes large, sometimes small; the beak is
high and straight, except at its tip, which terminates in a hook; its
margins are sharp, and the upper half, or in some species one-third of
the entire length is covered by a large cere; a slight outward bulging of
the edge of the upper mandible is sometimes perceptible, but an actual
tooth-like appendage is never met with amongst these birds. Some species
possess a comb-like growth of skin above the beak. The wings are very
large, broad, and decidedly rounded, the fourth quill exceeding the
rest in length; the tail is of moderate size, and composed of fourteen
stiff and rounded feathers; exceptional instances however occur, in which
the second quill of the wings is the longest, and the tail formed of but
twelve feathers. The legs are powerful, but the toes are weak and the
talons short, blunt, and but slightly curved, making it at once evident
that the feet of the Vulture are not much employed in seizing its prey.
In most respects the internal structure of these birds resembles that of
the Falcons; the following exceptions, however, are worthy of notice. The
neck being longer they have more cervical vertebræ, and those of the tail
are proportionately broader. The breast-bone is also comparatively low,
and the gullet terminates in a crop of great size, which, when filled,
projects like a bag from beneath the throat.
[Illustration: _Plate 11, Cassell's Book of Birds_
THE ANGOLA VULTURE ____ Gyphierax Angolensis
(_one third Nat. Size_)]
[Illustration: VULTURES FEASTING.]
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