Mr. H. Seebohm on the Ornithology of Siberia. 330 
them barren, so that I was able to shoot as many of one sex 
as of the other. The following descriptions of these hand- 
some birds may be worth recording :— 
No. 161. The thoroughbred Hooded Crow of the Yen- 
e-say’ has the wings, tail, head, throat (extending as far as 
the upper part of the breast), and thighs black. The rest 
of the body is ashy grey, slightly darker on the under tail- 
coverts. The upper tail-coverts begin grey, gradually become 
darker in the centre until they are only edged with grey, 
and finally become black as they join the tail. The axillaries 
are grey. The grey is much lighter than in Western-EKuropean 
birds, being almost as light as in Corvus capellanus of Sclater, 
from Persia. The latter bird, however, has a longer bill. 
No. 181 can only be called a Hooded Crow. The grey is 
a shade darker than in the preceding, and the shafts of the 
grey feathers on the back are very dark. 
No. 162 has traces of black on the centres of the feathers 
across the back, but perhaps not more than one might expect 
to find in an accidental variety. 
No. 128. The grey on the back is very similar to the pre- 
ceding; but the upper and under tail-coverts are so much 
darker than usual that I have no hesitation in saying that 
this bird is not thoroughbred. 
No. 164 has still more Carrion-Crow blood in its veins. 
All the feathers of the back are black, with grey edges. The 
axillaries and upper and under tail-coverts are nearly black. 
“The breast and belly are much darker than usual. 
No. 166 I take to be about half-bred. It differs from the 
latter bird in having more or less grey edgings to the fea- 
thers on the back between the shoulders, in having the fea- 
thers of the breast and belly broadly edged with grey, and 
in having more or less grey on the axillaries and under tail- 
coverts. 
No. 141 is very similar to the preceding ; but the grey edges 
to the feathers are less distinct. 
Nos. 12, 143, 144, 146, 163, 165, 167, and 168 are evi- 
dently the commonest form (possibly octoroons). They are 
black, with a band of grey feathers (many of them with black 
[21] 
