102 THE VICTORIAN NATURALIST. 



similar in their habits to the Entomyza cyanotis, and are often 

 found in the same country. They live in pairs, and are bright, 

 lively birds, and have a loud, clear note. Like the E. cyanotis 

 they build their nests in the deserted dome-shaped tenements of 

 the Pomatorhinus. They are made entirely of grass, with finer 

 shreds of the same material for lining. They measure 4^ inches 

 high and 5 inches wide, and the inside cup 3^^ inches wide with 

 a depth of 2^ inches. The eggs are an elongated oval in shape, 

 and slightly smaller at one end, and of a reddish pink ground 

 colour, with a few dark reddish brown markings, especially on 

 the larger end, where they form an irregular zone. Other 

 smaller markings beneath the surface are of a pale purplish hue. 

 The eggs measure — {a) 1.26 x .82 inch, (6) 1.28 x .80 inch. I 

 do not think they have been described before. 

 Calyptorhynchus baudini, White-tailed Cockatoo. 



These birds are only found in Western Australia, and chiefly 

 there in the central districts. Mr. Bruce Leake found their nest 

 on 28th August, 1898 ; it was situated in a hollow spout of a limb, 

 30 feet from the ground, that had broken off close to the trunk 

 and was partly overgrown, the two eggs being laid on the 

 decomposed wood at the bottom. The birds' had used the same 

 nesting site for several seasons. The eggs are a dull white, slightly 

 granulated, and with a few small excrescences ; in shape oval, 

 and they measure — (a) 1.79 x 1.30 inch, (6) 1.77 x 1.26 inch. 



The birds generally congregate in flocks of from ten to thirty birds, 

 but during the nesting season, August and September, the flocks 

 consist of young birds only. Gould has previously described the 

 egg of this bird, but he mentions that the breeding season extends 

 from October to December, but, like the C. banksi and G. viridis, 

 they generally nest in x'Vugust or September. 

 Callocephalon galeatum, Gang-Gang Cockatoo. 



These birds are found in south-east Australia, and also in 

 Tasmania, and on King Island, in Bass Straits. They are no- 

 where very plentiful, and go about in pairs, being generally found 

 in heavily timbered country. It feeds entirely on the trees, 

 whereas the majority of cockatoos (excepting the black) feed on 

 the ground ; its food consists of seeds and grubs. They have a 

 pecuhar cry, something like the creaking of a hinge. The 

 breeding season is from September to December. They generally 

 choose the end of a hollow branch or cavity in the main trunk in 

 which to deposit their two eggs, laying them on the decomposed 

 wood at the bottom, and, as a rule, the holes they choose are 

 very high up and difficult to get at. The eggs are small for the 

 size of the bird, and are dull white, ovate in form, and measure — 

 (a) 1.25 X .94 inch, (6) 1.28 x .92 inch. Mr. Keartland de- 

 scribed and exhibited an egg of this bird some time ago before 

 this Club. 



Addendum — Errata. — In my paper entitled " Ornithological 



