This wallaby proved to be the Halmaturus agilis, first found at Port Essington, and afterwards by Leichhardt in Carpentaria.

A singular bat of a reddish-brown colour was shot one day while asleep suspended from a branch of a tree; it belonged to the genus Harpyia, and was therefore a contribution to the Australian fauna.
Among many additions to the ornithological collections of the voyage were eight or nine new species of birds, and about seven others previously known only as inhabitants of New Guinea and the neighbouring islands.* The first of these which came under my notice was an enormous black parrot (Microglossus aterrimus) with crimson cheeks; at Cape York it feeds upon the cabbage of various palms, stripping down the sheath at the base of the leaves with its powerful, acutely-hooked upper mandible.

The next in order of occurrence was a third species of the genus Tanysiptera (T.sylvia) a gorgeous kingfisher with two long, white, central tail-feathers, inhabiting the brushes, where the glancing of its bright colours as it darts past in rapid flight arrests the attention for a moment ere it is lost among the dense foliage.
(*Footnote.

Many of these have since been figured and described, with accompanying notes on their habits, etc., in the recently published Supplement to Mr.Gould's Birds of Australia.) I may next allude to Aplonis metallica--a bird somewhat resembling a starling, of a dark glossy green and purple hue, with metallic reflections--in connection with its singular nest.

One day I was taken by a native to the centre of a brush, where a gigantic cotton-tree standing alone was hung with about fifty of the large pensile nests of this species.
NATIVE BIRD-NESTING.
After I had made several unsuccessful attempts to shoot down one of the nests by firing with ball at the supporting branch, the black volunteered to climb the tree, provided I would give him a knife.