336. BERNICLA DISPAR, Ph. et Landb.

(BARRED UPLAND GOOSE.)

+Bernicla dispar+, _Burmeister, P. Z. S._ 1872, p. 366 (Sierra Tinta,

Rio Negro). +Bernicla antarctica+, _Burm. La-Plata Reise_, ii.

p. 514 (err.). +Chloephaga dispar+, _Scl. P. Z. S._ 1867, p. 334

(Chili). +Bernicla magellanica+, _Scl. P. Z. S._ 1872, p. 549

(Rio Negro); _Durnf. Ibis_, 1878, p. 400 (Chupat). +Chloephaga

magellanica+, _Barrows, Auk_, 1884, p. 273 (Carhué).

_Description._--White; neck behind and body beneath banded with

black; primaries, greater wing-coverts, tertiaries, and scapulars

cinereous; rump and tail-feathers ashy black; bill black; feet dark

plumbeous: whole length 26·0 inches, wing 16·0, tail 5·5. _Female_:

head and neck cinnamon-brown; abdomen similar, passing into white

on the crissum, and altogether barred with black; upper back also

barred; rump and tail-feathers brownish black.

_Hab._ Chili and Argentina.

This bird is a northern form of the well-known "Upland Goose" of the

Falkland Islands and Southern Patagonia, from which it differs in the

male being completely barred across with black on the lower surface. It

was first described by Philippi and Landbeck from Chilian specimens, and

in 1872 recognized by Dr. Burmeister as found near the Sierra Tandil and

on the Rio Negro.

In April and May this Goose migrates northwards, along the eastern

coast, as far as the pampas of Buenos Ayres, the migration ending about

one hundred and fifty miles south of Buenos Ayres city. Further south

they are at this season of the year excessively abundant in suitable

localities. Their great camping-grounds are the valleys of the rivers

Negro and Colorado, where they are often so numerous as to denude the

low grounds of the tender winter clovers and grasses, and to cause

serious loss to the sheep-breeders. They also visit the cultivated

fields to devour the young wheat, and are intelligent enough to

distinguish between a real human enemy and the ragged men of straw,

miscalled scarecrows, set up by the farmers to frighten them. While

committing their depredations they are exceedingly wary and difficult to

shoot, but at night, when they congregate by the water-side, they give

the sportsman a better chance. I have succeeded in killing as many as

five at a shot by stalking them under cover of the darkness; and a more

deliciously flavoured game-bird than this Goose I have never tasted.

They are social birds, always going in large flocks, and are very

loquacious, the female having a deep _honking_ note, while the male

responds with a clear whistling, like the Sanderling's note

etherialized.

Argentine Ornithology, Volume 2 (of 2) A descriptive catalogue of the birds of the Argentine Republic. · 第 330 / 448 题