THE BIRDS OF AUSTRALIA. 
I name the Fleurieu Peninsula race 
Pachycephala pectoralis my pong a subsp. nov., 
the males are dark coloured above with the tail more than half black and the 
grey base of dark shade. As above noted, the females are quite peculiar, the 
upper coloration being also very dark grey washed with dark olive, and the 
under tail-coverts have a few yellow feathers. 
The Kangaroo Island form can be regarded as 
Pachycephala pectoralis halmaturina A. G. Campbell 
until longer series prove whether it can be combined with any of the preceding 
or is quite distinct. Of course, the latter is most probable. 
From West Australia long series of 
Pachycephala pectoralis occidentalis Ramsay 
have been examined. I designate as type locality Albany, and use the name 
for the dark coloured race, ranging from there to Perth. 
I, however, distinguish as 
Pachycephala pectoralis interjecta subsp. nov. 
the race from the Stirling Ranges, which has the females noticeably paler 
below, but still with a reddish shade, and the upper coloration paler grey. The 
males vary in the depth of the black band on the tail, in some specimens it 
almost disappears and the grey is a pale shade. 
A. J. Campbell has written regarding the birds of Rockingham Bay district 
under name Pachycephala queenslandica (Queensland Whistler): “No birds 
are more puzzling in their phases of plumage than the Yellow-breasted Thick- 
heads. When we were on the flat country and on Goold Island, during August 
and September, we procured specimens, which, although apparently adult, 
showed signs of immature plumage (rufous edgings on the wing -feathers, etc.), 
and their notes were different. But when we went to the ranges during October 
we found the males ‘ full ’ throated with song, and with breasts resplendent 
with yellow. We now believe that the grey birds of the coast and the full- 
plumaged ones of the range are referable to the race above named.” 
This race will bear the name 
Pachycephala pectoralis queenslandica Reichenow 
of which P. mestoni De Vis is synonymous. 
This is a peculiar subspecies, as the males have black tails with obscure 
grey bases slightly washed with olive, and small bills, and thus agree with 
the typical subspecies, but are deeper yellow below even as the Blackall 
Range, South Queensland, form I have called 
Pachycephala pectoralis ashbyi Mathews. 
The northern race, however, is peculiar in its plumage changes, the youngest 
bird showing a brownish under -surface with indistinct streaks which, however, 
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