ORNAMENTAL WATERFOWL. 47 
modification. Mr. Gurney’s birds bred at their natural time, 
but those in the Zoological Gardens have laid in different years 
during March, April, May, August, September, October, and 
November, A pair of these swans may usually be obtained at 
from £8 to £10. 
Male.—Entire plumage dull black ; part of the flight- 
feathers white; eyes bright red, as is also the beak, which 
has a white tip; feet black. 
Female.—The same. 
Young.—Greyish-white in down. 
Egg.—Pale green, with brownish patches ; four to eight 
in number. January—April; August—November. Incuba- 
tion, thirty-four to thirty-seven days. 
COSCOROBA SWAN. 
(Cygnus coscoroba). 
The Zoological Society first acquired these elegant birds 
in 1870, where they made a nest, but did not succeed in hatching 
their eggs. They are natives of Chili, and were observed by 
Burmeister in large numbers during the winter near Santa Fé, 
where they frequented the lagoons in flocks like the Common 
Swan. The Coscoroba was observed by Darwin, Cunningham 
and Musters, in the Straits of Magellan, on the Falkland 
Islands, and in Patagonia. Captain Abbott records that this 
species breeds in the neighbourhood of East Falkland, young 
birds of about a month old having been observed at Mare 
harbour. The Zoological Society of London possesses speci- 
mems purchased in 1884. 
