NEW YORK ZOOLOGICAL PARK. 135 
The Trumpeter Swan, (Cygius buccinator), being the larg- 
est bird in the aviary, and also snowy white, is therefore 
the most conspicuous. Several fine specimens are shown on 
the North Island, living contentedly with other species. 
Some of these specimens were captured in Idaho, when 
young enough to take kindly to captivity. 
The Black Swan, (Chenopsis atrata), of South Australia 
and Tasmania, is as glossy black, excepting its primaries, 
as other swans are white. It is a large and handsome bird, 
and much sought by all persons who form collections of 
water fowl. 
The Coscoroba Goose, (Coscoreba coscoroba), is a fair con- 
necting link between the swans and the ducks, partaking 
about equally of the characters of each. In size and color 
it is very much like our snow goose, (Chen hyperborea), but 
it is peculiar in possessing very long legs of a bright pink 
color, by which it is quickly recognized. Its bill, also is 
pink, and the tips of its primaries are black. The Coscoroba 
Goose is a native of southern South Ainerica, and a few years 
ago specimens were so rare in captivity that a pair sold 
for $300. 
THE FLYING CAGE, No. 4. 
This mammoth bird-cage is one of the wonders of the 
Zoological Park. It represents an attempt to do for certain 
large and showy water birds, precisely what has been done 
for the hoofed animals, the beaver, otter, and other spe- 
cies—give them a section of Nature’s own domain. In this 
they ean fly to and fro, build nests and rear their young in 
real freedom. 
Near the lower end of Bird Vally, as a sort of climax 
for the Goose Aviary when seen from the north, rises a lofty, 
web-like structure, in the form of a huge, gothic arch. It is 
55 feet in height, 75 feet wide, and 152 feet long. The 
whole structure consists of a series of steel-pipe arches and 
purlins, the former eight feet apart, over which wire-netting 
has been tightly stretched. 
The wire-netting seems peculiarly open. It is of the kind 
known as chain-netting, which offers the least possible 
obstruction to the eye. This cage is so large that a very 
respectable block of houses, three stories high and of ample 
dimensions, could stand within it without touching the wire. 
It completely encloses three forest trees of very consider- 
