April 9 

 1914 



] thayer and bangs — birdp 41 



Paridae. 

 Penthestes cinctus obtectus (Cabanis). 



Six specimens, of both sexes, were taken at Nijni Kolymsk in 

 October and November, 1911, and in March, 1912. It is said to be 

 common in the wooded sections of Kolyma. 



In these skins the culmen varies in length from 10 to 11 mm. 

 Ridgway gives the length of culmen in P. cinctus alascensis as 

 from 9 to 9.5 mm. This seems to be the only character by which 

 the two subspecies can be kept apart. 



MOTACILLIDAE. 



Motacilla alba ocularis Swinh. 



Swinhoe's wagtail arrived at Nijni Kolymsk, on May 15, 1912, 

 and in the autumn of 1911 was observed as late as Sept. 21. A nest 

 with a set of six eggs was taken at Nijni Kolymsk, June 11, 1912. 

 It was built under the roof of a log cabin in the village. The species 

 was noted also at Cape Serdze, Aug. 23, 1911 ; at Cape Chelakhskai, 

 Chaun Bay, Aug. 27, 1912; and at Cape Irkaipij, Sept. 4, 1911. 



Budytes flavus plexus subsp. nov. 



Four adults, of both sexes, were taken at Nijni Kolymsk from 

 June 2 to June 21, 1912. 



This yellow wagtail was common at Kolyma, and was observed 

 also at Tenkurgin River, Aug. 29, 1911, and at Cape Irkaipij, 

 Sept. 5, 1911. 



On June 7, 1912, a nest with one egg was found on a grass-grown 

 turf, between two willows, in a swampy field, at Nijni Kolymsk. 

 On June 12, the nest was visited again, and it then contained five 



