HORN EXPBDITION—AYES. 
72 
No. 28. Pteropodocvs piiasianella, Gould. Ground Givaucalus. 
Grnucnlus phasia?icl/us, Gould, Proc. Zool. Soc., 1839, p. 142. 
rte7'opodocys phasim^eUa, Gould, Bds. Austr., foL, Vol. IT., pi. 59 (1848); 
Sharpe, Brit. Mus. Cat. Bds., Yol. IV., p. 22 (1879); North, Nests and Eggs 
Austr. Bds., p. 76, pi. ix., fig 2 (1889). 
Four specimens—one young male, Henhury; one adult male and two im¬ 
mature females, Alice Well. 
The young male has the tips of the primaries, secondaries, and greater wing- 
coverts broadly edged with pale huff, the innermost secondaries and wing-coverts 
having narrow, subterminal black bars ; the two central tail-feathei’s tipped with 
white and subterminally edged with black. The feathers of the forehead, nape, 
scapulars, and intei’scapular region are crossed with narrow black bars, and the 
barrings on the lower back, rump, and upper tail-coverts, are not as numerous as 
in the adult. The immature female has the innermost secondaries and scapulars 
tipped with bufty-white, narrowly crossed with bars of black; median and greater 
wing-coverts broadly tipped with dull bi’ownish buff. 
[At Crown Point these birds were first seen, but they were afterwards found 
at many places along the course of the Finke. They were very shy, and specimens 
were with difficulty procur(Kl. They are easily distinguished from G. 7iielaiiops by 
their peculiar flight, which is generally in a straight line, accompanied by a short, 
rapid flutter of their wings and also by their shrill note.] 
No. 29. Paciiycepiiala rufiventris, Latha77i. Rufous-breasted Thickhead. 
Sylvia r7ifive7ilris, Lath., Ind. Orn., Suppl., p. liv. (1801). 
Pachycephala pecio7-alis, Gould, Bds. Austr., fob, Vol. TI., pi. 67 (1848). 
Facliycephala r77five7ii7-is, Gadow, Brit. Mus. Cat. Bds., Vol. VIIJ., p. 208 
(1883); North, Nests and Eggs Austr. Bds., p. 67, pi. xii., fig. 1 1 (1889). 
One immature male, Deering Creek; one immature female, Illamurta. 
[Near Illamurta one of these birds was killed, which proved to be a young 
male; but subsequently more were .seen and several shot at different places. 
They were all similar in plumage, and in no case presented the sexual difference 
so noticeable in the genus generally. They are capital songsters, and must be 
heard at early morn to be appreciated. They were always found near water and 
in the scrub along the Finke River. The rocky gorges in the ranges were also 
frequented by them.] 
