THE BIRDS OF AUSTRALIA. 
but where I found one there I found the other. This species does not seem 
to choose the large eucalypts to breed in, but prefers a tree in a more open 
situation. I took typical eggs at Bore Well, and again near Milly Pool. 
The latter nest was in a solitary and stunted flooded gum growing in the 
centre of an extensive and open plain. 
“ HieTocidea orientalis. More common than the preceding species. The 
large, dark females, standing sentinel-like on some dead tree or bush were a 
familiar sight. . . . Young in down are fawn coloured.” 
Hill, giving field-notes on “ Birds of Kimberley,” North-west Australia 
{Emu, Vol. X., p. 267, 1911), only included Hieracidea orientalis, calling it the 
Western Brown Hawk and writing : “A few birds remained in the district 
throughout the year, but one nest only was found, from which broods were 
reared in October and November. During March, April and May, when 
grass fires were burning in all directions, these Hawks became numerous. 
The crops of those examined contained lizards and large insects {Mantidoe 
and Phasmidoe) only.” 
Further, Orton and Sandland (Emu, Vol. XIII., p. 77, 1913) record both 
species from Moora, West Australia. 
Macgillivray has published M‘Lennan’s notes in the Emu, Vol. XIII., 
p. 152, as follows : “ Hieracidea herigora. Seen on many occasions in the 
Gulf country and at Cape York, where the following note was made. 
11th August, 1911. When burning ofi all the pockets the fires attracted a 
number of Brown Hawks and Australian Goshawks. 
“ Hieracidea occidentalis. Noted at Corella Creek and on the Leichhardt. 
10th July, 1910. On the Leichhardt River, 2 miles from Augustus, shot a 
light brown Hawk. Saw a pair of these birds in a tree with a nest in it just 
ready for eggs. 7th July, 1910. On Leichhardt River saw a Black Falcon 
fly into a tree with a nest in it. Watched it for some time, but it did not 
go to the nest, so left it till later. Went down creek to where I had seen the 
Black Falcon. Flushed a bird from the nest and climbed to it : it contained 
two eggs. I did not take them. A pair of Black Falcons was flying round 
the tree while I was at the nest. 11th July, 1910. Went down to creek 
where I had seen the Black Falcons about a nest. Flushed a light brown Hawk 
from the nest, which still contained two eggs.” 
When Ramsay reported upon Mr. Cairn’s Collection from Derby, 
North-western Australia {Proc. Linn. Soc. N.S.W., Ser. II., Vol. I., 1886, 
p. 1086, 1887), he included both species thus : “ Hieracidea orientalis 
Schlegel. Hieracidea herigora Vig. & Horsf. Specimens of these birds, 
which are both smaller individuals than those from the eastern and southern 
parts of the Continent, seem to prove that they may be one and the same 
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