Collection of Birds from Western Australia. 
167 
Pandion leucocephalus Gould. 
Pandion leucocephalus Math. p. 43. 
a-c. <$ . Bernier Island, 8tli—11th July. 
Iris deep yellowish-brown ; bill and cere slate-black ; legs 
bluish-white, claws of a dark slate-colour. 
Total length, measured in the flesh, 21 *5-22*0 inches ; 
wing 16*1-16*2. 
[The Osprey was fairly plentiful in the coastal districts 
and particularly numerous on the islands off the coast.— 
G. C. £.] 
Cerchneis cenchroides (Vig, & Horsf.). 
Cerchneis cenchroides Math. p. 42. 
? Cerchneis unicolur Milligan, f Emu/ iv. p. i (1901) 
[Yalgoo]. 
a. $ imm. Dale River, 18th Dec. 
b-e. A ? • Kurrawang, 14th-29th Sept. 
/. [<?]. Laverton, 20th Oct. 
g , h. $ ? . Clifton Downs, 21st Sept. 
Iris dark brown; orbits, cere and gape yellow; bill pale 
bluish, blacker at the tip ; legs dull yellow, claws of a slate- 
colour. 
Total length, measured in the flesh, 12*25-13*5 inches. 
Mr. Milligan believes that a specimen captured at Yalgoo, 
W. Australia, represents a distinct species which he has 
named C. unicolor. It is said to be much smaller than 
C. cenchroides and to have the general colour more rufous, 
while the tail (though the type-specimen is said to be an 
adult male) is described as rusty cinnamon. No doubt the 
sex has been wrongly determined. 
The colour of the under parts differs greatly in individuals, 
some having these parts whitish while in others they are 
washed with pale cinnamon. 
[The Nankeen Kestrel was very plentiful on the mainland 
and was also observed on Bernier Island. It is migratory 
in the south-west.— G. C. &] 
