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THE BIRDS OF AUSTRALIA. 
These are named 
Pachycephala robusta consobrina Mathews 
and were later named P. g. longirostris Zietz, but this name was also 
preoccupied. 
The series from Napier Broome Bay which will bear the name 
Pachycephala robusta hilli (Campbell) 
have the females much paler yellow below, the throat whitish with little 
speckling, and the back grey above not green. 
Apparently the females have the bills black and the tails black, but some- 
times throughout this group immature breeding males have been marked as 
females without dissection, so care must be used in dealing with specimens. 
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