395. HIMANTOPUS BRASILIENSIS, Brehm.

(BRAZILIAN STILT.)

+Himantopus nigricollis+, _Burm. La-Plata Reise_, ii. p. 502

(Pampas); _Scl. et Salv. P. Z. S._ 1868, p. 144 (Buenos Ayres);

_Barrows, Auk_, 1884, p. 314 (Entrerios, Azul, Pampas).

+Himantopus brasiliensis+, _Scl. et Salv. Nomencl._ p. 144; _iid.

P. Z. S._ 1873 p. 454; _Durnford, Ibis_, 1877, p. 198 (Buenos

Ayres); _Gibson, Ibis_, 1880, p. 162 (Buenos Ayres).

_Description._--White; line behind each eye, nape, back of neck,

interscapulium, and wings black; a narrow white band divides the

black neck from the black upper back; bill black; feet orange: whole

length 14·0 inches, wing 8·5, tail 3·3, bill from gape 2·5, tarsus

4·2. _Female_ similar.

[Illustration: Head of BRAZILIAN STILT. (P. Z. S. 1873, p. 454.)]

_Hab._ South America.

This bird is resident and common in the Plata district, and is called in

the vernacular _Téru-real_, also _Zancudo_ (stilt). It frequents marshes

and lagoons, and wades in search of food in the shallow water near the

margin. It is lively in its movements, and notwithstanding the great

length of its legs has a pretty, graceful appearance on the ground. On

the wing, however, it is seen at its best, the flight being remarkably

swift and free, while the sharply-pointed glossy-black wings contrast

finely with the snow-white plumage of the body, and the red legs

stretched out straight behind have the appearance of a long slender

tail. Stilts are fond of aerial exercises, pursuing each other with

marvellous velocity through the air, so that a few moments after the

spectator has almost lost sight of them in the sky above they are down

again within a few yards of the surface. While pursuing each other they

constantly utter their excited barking cries, which in tone remind one

of the melodious barking of some hounds.

The nest is made on the low ground close to the water, and consists

merely of a slight lining of dry grass and leaves gathered in a small

depression on the surface; the eggs are four in number, pyriform, dark

olive colour, spotted with brownish black, the spots being very thickly

crowded at the large end. During incubation the male keeps guard and

utters a warning note on the appearance of an enemy, whereupon the

female quits the nest. They also counterfeit lameness to draw a person

from the neighbourhood of the eggs or young; but in a manner peculiar to

this species; for owing to the great length of their legs they cannot

drag themselves along the ground, as ducks, plovers, partridges, and

other birds do. Placing themselves at a distance of forty or fifty yards

from the intruder, but with breast towards him, they flutter about a

foot above the ground, their long legs dangling under them, and appear

as if struggling to rise and repeatedly falling back. If approached they

slowly retire, still fluttering just above the grass and without making

any sound. After the young birds are able to fly they remain with the

parents until the following spring; and sometimes two or three families

associate together, raising the number of the flock to fifteen or twenty

birds. The young have a sharp querulous cry of two notes; the plumage is

brown and pale grey; the eyes black. After nine or ten months the adult

plumage is acquired, not by moulting, but by a gradual change in the

colours of the feathers. By the same gradual process the eye changes

from black to crimson, the outer edge of the iris first assuming a dull

reddish colour, which brightens and widens until the whole iris becomes

of a vivid red.

Argentine Ornithology, Volume 2 (of 2) A descriptive catalogue of the birds of the Argentine Republic. · 第 389 / 448 题