BROWN HAWK. 
ant-hill at Point Cloates, without any nesting material. November 1st, 1898. 
I found three young in down and a rotten egg in a white gum-tree at Broome 
Hill, in a hollow formed where a large branch had broken off. The eggs 
were laid on a few gum leaves on the rotten wood, and not more than a 
dozen small sticks.” 
Hall, under the name Hieracidea herigora, in the Emu, Vol. II., p. 63, 
1902, gave J. P. Rogers’ note : “ The Brown Hawk and Kestrel are here 
(Upper Livuringa, 3/1/01, North-west Australia) in great numbers, feeding 
upon the over-large population of well-developed grasshoppers.” Under 
this name he catalogued an “ adult male 30/6/01,” and under the name 
Hieracidea orientalis “ an immature male 28/8/00 : an immature skin 2/7/01.” 
Milligan {ih., p. 70), from the South-west of Australia, wrote : 
“ Hieracidea berigora. These birds were fairly numerous. Evidently they 
had begun to build, for one passed me with a long twig. The twig was 
carried under, and parallel with, the body. It is locally known as the 
‘ Chicken Hawk.’ The name given it by the aborigines of the South West 
is ‘ Don Don.’ ” 
Writing of the birds on the Pilbarra Goldfield, Whitlock, in the Emu, 
Vol. VIII., p. 178, 1909, observed : “ Native name ‘ Carra-caMu.’ The 
commonest Hawk of the Coongan district, and I again met with it on the 
de Grey plains. I found liaK a dozen nests, from which I obtained eggs. As 
a rule they were at a good height, but one at no greater elevation than 
20 feet. Unlike the others, this nest was away from the centre of the tree 
and was only reached with difficulty and some risk. An interesting fact was 
related to me by a kangaroo-hunter on the de Grey. He told me he had 
several times taken the eggs of this species (and probably the next mentioned, 
H. orientalis) from cavities in the huge ant-hills which are so conspicuous on 
these vast plains. Tliree was the maximum number of eggs I found, but in 
several cases the female was sitting on two.” He then added : “ Hieracidea 
orientalis — less common than H. berigora, but I noticed eggs in two 
nests.” 
Again Crossman, listing the birds seen at Cumminin Station, West 
Australia, includes {Emu, Vol. IX., p. 86, 1909) both H. orientalis and 
H. berigora, writing in connection with the first-named : “ Both this and the 
next species are plentiful. The Brown Hawk is not above feeding on carrion, 
as on two occasions I have found one dead near a poisoned lamb. It is 
curious to see the male and female differing so much in coloration as do 
Brown Hawks. They are a source of great loss in the poultiy-yard.” 
Whitlock, of East Murchison West Australian birds, in the Emu, Vol. IX., 
p. 191, 1910, wrote : “ Hieracidea berigora. Not so common as the following, 
VOL. V. 
265 
