remains of small _Coleoptera_, intermingled with the fibres of the roots of what appeared to be a parasitic plant, such as would be found in decayed and hollow trees. The whole contour of the bird shows that it is not formed for extensive flight or for performing those rapid evolutions that are necessary for the capture of its prey in the air, the wing being short and concave in comparison with those of the true aërial Nightjars, and particularly with the Australian form to which I have given the name of _Eurostopodus_. Of its mode of nidification I can speak with confidence, having seen many pairs breeding during my rambles in the woods. It makes a slightly-constructed flat nest of sticks carelessly interwoven together, and placed at the fork of a horizontal branch of sufficient size to ensure its safety; the tree most frequently chosen is an _Eucalyptus_, but I have occasionally seen the nest on an Apple-tree (_Angophora_) or a Swamp-Oak (_Casuarina_). In every instance one of the birds was sitting on the eggs and the other perched on a neighbouring bough, both invariably asleep; that the male participates in the duty of incubation I ascertained by having accidentally shot a bird on the nest without being aware it was so occupied, which on dissection proved to be a male. The eggs are generally two in number, of a beautiful immaculate white, and of a long oval form, one inch and ten lines in length by one inch and three lines in diameter. The sexes so closely resemble each other both in size and plumage, that a separate description is unnecessary. Like the other species of the genus, it is subject to considerable variation in its colouring; the young, which assume the adult livery at an early age, being somewhat darker in all their markings. The night-call of this species is a loud hoarse noise, consisting of two distinct sounds, which cannot be correctly described. The stomach is thick and muscular, and is lined with a thick hair-like substance like that of the Common Cuckoo.