362 GEOLOGICAL SURVEY OF CANADA. 



Three sets of eggs. One of three taken at Great Whale River, 

 James Bay, June, 1899, by Mr. A. P. Low, one of three taken on an 

 island in James Bay, June i8th, 1896, by Mr. Spreadborough, and 

 one of four taken at Cape Prince of Wales, Hudson Strait, June, 

 1885, by Mr. F. F. Payne. 



ilia. Pallid Horned Lark- 



Otocoris alpestris leucolama (Coues) Stejn. 1882. 



. Alaska and western British America, southward in winter into 

 the United States. A few breeding birds from the Saskatchewan 

 and Great Slave Lake region, though tinged with yellow on the 

 chin, are, on account of size and colours somewhat paler than al- 

 pestris referable to leucolmma ; so, too, are large dark birds with 

 white eyebrows and pale yellow chins found in winter in the 

 upper Mississippi valley, coming as they doubtless do from an 

 intermediate region between Hudson's Bay and Alaska. Breeding 

 birds of these two races are few and limited mainly to those taken 

 on Government expeditions ; consequently I do not draw the 

 lines on the map as closely together as with some of the other 

 races better defined. Two young, in first plumage, taken on 

 the Arctic coast, east of the Anderson River, may be referred to 

 this race. While they are not as black and white as might be 

 expected in Alaskan birds, they lack the general yellowishness of 

 young alpestris from Newfoundland. In winter leucolmma is found 

 as far south as the middle of the western United States, mostly 

 east of the Sierra Nevada mountains. Northwest coast speci- 

 mens indicate that a small-sized leucolcema may breed in the 

 mountains not far north of the United States boundary, though 

 such birds may generally be referred to merrilli. A male in autumn 

 plumage, taken August 26th at Chief Mt. Lake, on our northern 

 boundary. Long, i I4°,W. suggests the possibility of this form breed- 

 ing also on the mountains at that point, or not far to the north. 

 It is not reported from Pt. Barrow, is rare at St. Michael, Alaska, 

 and is probably an interior race. Breeding birds have been ex- 

 amined from Fort Yukon and St. Michael, Alaska ; Arctic Coast 

 east of Fort Anderson, also Horton River and Franklin Bay; from 

 Fort Reliance, port Resolution and Big Island, Great Slave Lake^ 

 also from Saskatchewan region. Non-breeding from Chilliwack, 

 B.C. {Dwight.) This very handsome lark arrives in the North- 

 west Territories along with the Lapland bunting, with which it 



