34 BIRDS AND MAMMALS OF EAST SIBERIA [^VoL'v ' 



He himself saw it on several occasions. Once at Nijni Kolymsk — 

 April 29, 1912 — a splendid adult bird was watched for a long time 

 circling about. No nests were found and no bird ever came within 

 gunshot. 



Falco peregrinus calidus Lath. 



The Siberian peregrine was observed singly or in pairs here 

 and there along the coast. At Sucharina, Kolyma, a nest with 

 three eggs was found, June 23, 1912. The nest was placed on a 

 ledge on a low bluff at the river bank. The female was taken, but 

 the male could not be secured. 



The eggs are smaller than those of any peregrine in the Thayer 

 Museum, but in color and texture do not show any differences. 

 They afford the following measurements (in inches): 1.83 X 1.46; 

 1.84 X 1.52; 1.90 X 1.51. 



Falco rusticolus subsp.? 



Gyrfalcons were observed at several points along the Siberian 

 Arctic coast, but unfortunately none were secured, and the form or 

 forms to which they belonged cannot be told. Mr. Koren's 

 notes on the subject are as follows: — Cape Kibera, Sept. 12, 1911, 

 one specimen observed, almost entirely white; Cape Irkaipij, 

 Sept. 10, 1912, one seen; Iksurin, Oct. 20, 1912, one seen; Big 

 Diomede Island, Dec. 15, 1912, one seen. 



Falco regulus insignis (Clark). 



The merlin was seen once only, at Nijni Kolymsk in the spring 

 of 1912. 



Strigidae. 



Asio flammeus flammeus Pontopp. 



One short-eared owl was taken at Sredna Kolymsk, Kolyma, 

 Feb. 16, 1912. It was an adult male, and was excessively fat, and 



