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Darwin, Charles, 1809-1882

"The Voyage of the Beagle"

The rock-goose, so called from living
exclusively on the sea-beach (Anas antarctica), is common both here
and on the west coast of America, as far north as Chile. In the
deep and retired channels of Tierra del Fuego, the snow-white
gander, invariably accompanied by his darker consort, and standing
close by each other on some distant rocky point, is a common
feature in the landscape.
In these islands a great loggerheaded duck or goose (Anas
brachyptera), which sometimes weighs twenty-two pounds, is very
abundant. These birds were in former days called, from their
extraordinary manner of paddling and splashing upon the water,
racehorses; but now they are named, much more appropriately,
steamers. Their wings are too small and weak to allow of flight,
but by their aid, partly swimming and partly flapping the surface
of the water, they move very quickly. The manner is something like
that by which the common house-duck escapes when pursued by a dog;
but I am nearly sure that the steamer moves its wings alternately,
instead of both together, as in other birds. These clumsy,
loggerheaded ducks make such a noise and splashing, that the effect
is exceedingly curious.


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