ack head, and grey brown plumage. Not very common,
though often seen in the interior. It is larger than the S. Chrysoptera.

79. CACATUA GALERITA.--Sulphur-crested Cockatoo.

This Cockatoo, the most common in Australia, is snow-white, with the
exception of its crest, which is of a bright sulphur. It is also the most
mischievous of Australian birds, and not only plays sad havoc amongst the
wheat when ripe, but soon clears a field that has been sown. They are in
immense flocks, and when in mischief always have sentinels at some
prominent point to prevent their being taken by surprise, and signify the
approach of a foe by a loud scream. They build in the hollows of trees,
and in vast numbers in the Murray cliffs, making them ring with their
wild notes; and in that situation are out of reach of the natives. They
are abundant along the line of the Darling as high as Fort Bourke, but do
not pass to the westward of that river, nor do they inhabit the interior.

80. CACATUA LEADBEATERII.--Leadbeater's Cockatoo.

This beautiful Cockatoo is, like the first, of white plumage, with a
light red shade under the wings. He has a large sulphur and scarlet
crest, which he erects to the best advantage when alarmed. This Cockatoo
frequents the pine forests near Gawler Town, and is seen wherever that
tree abounds; but he is not common, although widely distributed over the
interior; his range extending to the latitude of Fort Grey, in 29
degrees; far beyond where any pinetrees were to be found.

81. CACATUA SANGUINEA, GOULD.--Blood-stained Cockatoo.

This is a smaller bird than either of the preceding; it is also of white
plumage, with a light red down under the feathers; and, although it has
the power of erecting the feathers on its head, it may be said to be
crestless. This bird succeeded Cacatua galerita, and was first seen in an
immense flock on the grassy plains at the bottom of the Depot Creek,
feeding on the grassy plains or under the trees, where it greedily sought
the seeds of the kidney bean. These cockatoos were very wild, and when
they rose from the ground or the trees made a most discordant noise,
their note being, if anything, still more disagreeable than that of
either of the others. They left us in April, and must have migrated to
the N.E., as they did not pass us to the N.W., nor were they any where
seen so numerous as at this place.

82. CACATUA EOS.--Rose Cockatoo.

This beautiful bird, seen in the depressed interio