NO. 2255. 



CATALOGUE OF SIBERIAN BIRDS— RILEY. 



623 



Family FRINGILLIDAE. 



68. ACANTHIS HORNEMANNI EXILIPES (Coues). 



Two males and one female, Nijni Kolymsk, June 10, 16, 25, 1915 ; 

 one male and one female, 7 miles north of Nijni Kolymsk, May 21, 

 1915. 



One of the males taken at Nijni Kolymsk (No. 237425, June 25) is 

 very pale above, the centers of the feathers of the back and wings 

 being light drab, edged with dirty white ; tail smoke gray, edged with 

 white. In fact, it is approaching albinism. 



Very common in summer and autumn. Did not observe them around Nijni 

 after the end of October, but was told at Verkhni tliey remain in the upper 

 Kolyma Valley all winter. — C. A. 



A nest and four eggs with incubation advanced about five days was 

 taken from a willow about 2^ feet from the ground at Nijni Kolymsk, 

 July 5, 1915. The nest is composed of cotton wool, rootlets, grass, 

 and small sticks felted together and lined with cotton wool and 

 feathers. The outside diameter of the nest is about 3^ inches, that 

 of the egg cavity is about If inches, and the depth of the latter about 

 If inches. 



The eggs are etain blue with some light vinaceous-drab markings 

 and a few spots and scrawls of taupe brown arranged principally 

 around the larger end. They measure as follows: 16 by 12, 16.2 by 

 12.4, 16.4 by 11.9, 16.4 by 11.7 mm. 



69. PLECTROPHENAX NIVALIS NIVALIS (Linnaeus). 



Three males and five females, 7 miles north of Nijni Kolymsk, May 

 12, 13, and 14, 1915; one immature male and one female, Emma 

 Harbor, July 22 and August 5, 1914. 



These do not seem to differ from North American birds in size or 

 color. 



70. CALCARIUS LAPPONICUS ALASCENSIS Ridgway. 



One adult and one young male, and four adult females, Emma 

 Harbor, July 22 and 28 and August 8, 1914 ; one young, Koliutschin 

 Bay, August 10, 1914. 



These specimens are very much worn but seem to agree better with 

 C. I. alascensis than with C. I. coloratus^ as has been already re- 

 marked by Thayer and Bangs.^ 



1 Proc. New England Zool. Club, vol. 5, 1914, p. 46. 



