NO. 2255. 



CATALOGUE OF SIBERIAN BIRDS— RILEY. 



625 



from Bering Island and the Kolyma differ in that the back is more 

 steely blue not so purplish, and in my opinion, Dr. L. Stejneger^ 

 was justified in assigning the crow of this species from Kamtschatka 

 to a different form. The measurements of the females given by 

 Doctor Stejneger ^ with the two birds mentioned above are as follows : 



75. NUCIFRAGA CARYOCATACTES MACRORHYNCHOS Brehm. 



One male, two females, and two unsexed, 80 miles from the mouth 

 of the Little Annuj River, November 10, 11, 14, and 20, 1914; one 

 male, 53 miles west, May 10, 1915; and one male, 67 miles west of 

 V^erkhni Kolymsk, May 21, 1915. 



The majority of the Kolyma birds when compared with three 

 males and one female from Korea look quite different; they are 

 more nearly hair brown on the back, which is bistre in the Korean 

 series. A male and female from Japan are rather odd in that the 

 female (July 2) resembles the Kolyma birds in color, while the 

 male (December 7) is like the Korean birds. It may be that the 

 striking difference in color between Korean and Kolyma birds is due 

 to the freshness of the specimens of the latter. This is the more 

 probable as two of the Kolyma specimens resemble the Korean birds. 



Observed many on the Little Annuj in November but not around Nijni. In 

 April and May observed them in the foothills of the Tomus Chaja Mountains. 

 Was told at Verkhni they were to be found in this region regularly throughout 

 the year ; that is, near the mountains. — C. A. 



76. PERISOREUS INFAUSTUS YAKUTENSIS Butnrlin.* 



Four males and one female, Verkhni, Kolymsk, April 14 and 22, 

 1915; one male. Little Annuj River, September 6, 1914; one male, 80 

 miles from mouth of Little Annuj River, November 5, 1914. 



3343- 



iBull. U. S. Nat. Mus., No. 29, 1885, pp. 239-241. 

 2Messager Ornith., 1916, pp. 39, 43. 



-19— Proc.N.M.Vol.54 41 



