Cassell's book of birds; vol. 4Brehm, Alfred Edmund
Science
Cassell's book of birds; vol. 4
Brehm, Alfred Edmund
Birds
The INDIAN SCISSOR-BILL (_Rhynchops orientalis_) is white upon the
forehead, face, tail, under side of the body, and upon the points of the
larger wing-covers; the top of the head, back of neck, and mantle are
blackish brown; the eyes are dark brown, the beak and feet coral-red.
The length of this species is seventeen inches, its breadth forty-two
inches, length of wing thirteen inches, and of tail two inches and a half.
The Scissor-bill has frequently come under our notice, while travelling
along the banks of the Middle and Upper Nile. This bird may occasionally
be seen flying by day if it has been disturbed; but it usually remains
motionless upon sandbanks from morning to evening, generally lying flat
upon its belly, more rarely standing up on its little feeble feet; while
thus reposing, it is but seldom that it makes any noise or exhibits the
slightest activity. As the sun sets, however, it begins to be more lively,
moves about, stretches itself, raises its wings, hops backwards and
forwards, and utters its peculiar cry; but it is only as night approaches
that it flies away in search of food. Its movements are then in exact
accordance with the peculiar structure of its beak. With long strokes
of its wings, it glides noiselessly along close to the water, from time
to time dipping its lower mandible beneath the surface and keeping it
there for a minute or two at a time, ploughing, as it were, the top of
the river, with its strangely-shaped under jaw, and skimming the water.
In this manner it manages to collect great numbers of the insects, which
upon the banks of the Nile, at least, constitute its principal food.
Whether it also eats small molluscs, more particularly bivalves, and is
skilful in opening them with its beak, we cannot say, but that this is
the case with some of its congeners seems to be pretty well established.
Lesson states that he saw an American Scissor-bill seat itself quietly
down near some bivalve shell-fish left by the tide and wait patiently till
they opened their valves, when it inserted its beak between the separated
shells, till the occupant again closed its valves and thus laid hold upon
the beak; he then flew away with it to a neighbouring stone and beat the
shell to pieces. Tschüdi relates the same circumstance, but whether from
his own observation or from Lesson's narrative we do not know. At present
we entertain some doubts of the accuracy of the observations alluded
to. The flight of the Scissor-bill is light and beautiful, but somewhat
peculiar, inasmuch as the bird is obliged to raise its wings very high in
order to prevent the tips from striking the water; its proportionately
long neck enables it to do this, allowing it to keep its body at the
distance of about an inch from the surface, while a considerable portion
of its beak is held under water. Its hunting ground seems to extend for
about the space of a mile up and down the stream. In Central Africa it
Public-domain text, read in full here on John Shaqi.
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