Mr. H. Seebohm on the Ornithology of Siberia. 328 
Corvus corax, Linn. 
We occasionally noticed Ravens during almost the whole 
of our long sledge-journey ; but at the Koo-ray’-i-ka they did 
not appear until the middle of May. After their arrival a 
day seldom passed without one or more being seen. They 
seemed to me to be less shy than Ravens usually are, and I 
had no difficulty in shooting half a dozen to skin. I was 
told, upon good authority, that in summer they are found as 
far north as the Russian fishermen go, about lat. 72°. I 
brought home eight skins of this bird with me. They varied 
in length of wing, from carpal join$, from 16:2 to 17:2 inches. 
The exposed portions of the bastard primary varied from 6 to 7 
inches, and the distance from the end of the first primary to 
the end of the second primary from 3°3 to 4 inches, the 
bastard primary exceeding in length the end of the inner- 
most secondaries. 
Corvus cornix, Linn. 
During the whole of our long sledge-journey from Nishni 
Novgorod as far as Tomsk the Hooded Crow abounded on the 
road-sides ; and in returning during the autumn I found it 
equally common on the banks of the various rivers which the 
steamer navigates between Tomsk and Tobolsk, and between 
the latter town and Tyu-main’. Indeed, so far as my obser- 
_ vation goes, the whole of Russia and West Siberia may be 
described as a vast colony of Hooded Crows. East Siberia, 
on the other hand, is an equally vast colony of Carrion-Crows. 
From Kras-no-yarsk’ to Yen-e-saisk’ I saw nothing but the 
Carrion-Crow. Middendorff records the same on the Lay’-na, 
and eastwards to the sea of Okotsk ; and southwards Prije- 
valsky (pronounced Psheval’sky) found it common in Mon- 
golia. The distance between Tomsk and Kras-no-yarsk’ is 
about 550 versts. As you travel eastwards from Tomsk for 
the first 200 versts the Hooded Crow only is to be seen. 
During the last 200 versts before reaching Kras-no-yarsk’ the 
Carrion-Crow alone is found. In the intermediate 150 versts 
about one fourth of the Crows are thoroughbred Hoodies, 
one fourth are pure Carrion, and the remaining half are 
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