52 
Mr. T. Carter on some 
[Ibis, 
in March 1919. None were noticed in the vicinity of Cape 
Mentelle, where they were not uncommon when I was there 
in 1903, and the coastal scrubs were intact. This is a very 
seclusive, quiet species, feeding on the ground beneath thick 
scrub, especially near any small brook. 
Pachycephala pectoralis occidentalis. 
Western Thickheads were common about Broome Hill, 
and all south-western districts. 
Lewinornis rufiventris didimus. 
I did not see a single specimen of the Southern Rufous- 
breasted Thickhead on my 1919 trip, although they are 
usually common about Broome Hill. 
G-ilbertornis inornata gilbertii. 
No Black-lored Thickheads were seen in February or 
March 1919 about Broome Hill, although they are usually 
fairly numerous there, their loud notes speedily attracting 
attention. 
Alisterornis lanioides carnarvoni. 
The type of the Carnarvon White-bellied Thickhead 
was obtained by me on 28 September, 1913 (see Mathews, 
4 Austral Avian Record,’ vol. ii. p. 75). It was an immature 
male, apparently breeding, and my attention to it was 
attracted by the loud melodious thrush-like notes that it 
was uttering, as it fed under some dense mangroves. When 
I picked the bird up, my first impression was that I had 
secured a new Shrike-Thrush, to which species there is a 
striking resemblance in the plumage of female and immature 
birds, and also in the size of the beak. 
On 30 September, 1913, I saw a similar bird, also below 
some mangroves, busily eating small crabs and other Crus¬ 
tacea on the edge of the receding tide. This specimen was 
a female with enlarged ovaries. My next visit to these 
mangroves was early in June 1916, and on the 6th of that 
month I shot a male bird in full plumage, but dissection 
showed that it was not breeding then. I searched all the 
