Mr. W. O. Aikin on the Ash-coloured Harrier. 323 
12. Mandibles, (Chelicéres, antenne-pinces, ou serres frontales, 
Latr.), of 2 Low. citigrada. 
13. Dittoof 9 Seyt. thoracica, Latr. 
14. Outline profile of abdomen and thorax of Lox. citigrada. 
15. Ditto ditto of Scyt. thoracica, Latr. 
All except Figs. 1, 2 and 3, more or less magnified. 
Arr. XLII. Note on the Ash-coloured Harrier, (Falco 
cinerarius, Mont.). By W.O Artin, Esq., in a Letter 
tothe Editor. 
TO THE EDITOR OF THE ZOOLOGICAL JOURNAL. 
Sir, 
I have had, during the last month, an opportunity of examining several 
specimens of the ash-coloured Harrier, (Falco cinerarius, ) and as the 
females differ materially from the description published in Selby’s 
Illustrations of British Ornithology, perhaps my remarks may not be 
unacceptable to the readers of your valuable Journal. 
In the description above alluded to, it is stated that “the whole of the 
“* under parts are orange-brown without spot or sireak;’’ I have now 
seen five adult females, none of which have the under parts of a uniform 
colour, on the contrary, every feather for a considerable space on each 
side of the shaft is very much darker than the edges, so as to give the 
appearance of lengthened streaks down the breast, belly and thighs, but 
more particularly on the breast; the irides also of four of these birds 
were of a deep hazel, though certainly arrived at maturity, as one of 
them was brought to me with its mate and nest of young; the other had 
- the irides of a very light yellow, and from its general appearance I should 
judge was a much older bird, as the whole plumage was of a lighter 
colour, 
Montagu, in the Supplement to his Ornithological Dictionary, substitutes 
the description of a young male for that of the mature female, in which 
he states that the under parts are of a uniform colour, so that it is apparent 
