KILBUCK AND AHKLUN MOUNTAIN BIRDS 



65 



Nesting pairs used dwarf shrub mat and dwarf shrub meadows along 

 the coast and treeless bogs, wet dwarf shrub meadows, and dwarf shrub 

 mat habitats inland. At Cape Peirce and Nanvak Bay, birds arrived early 

 in spring (1-3 May) and began aerial displays above their nesting habitat 

 on 13-16 May. Pairs and singles were present at Chagvan Bay on 20-27 

 May 1987, although no aerial displays were seen (D. F. Parmelee and J. 

 M. Parmelee, unpublished). J. Sargent observed a pair copulating there 

 on 20 May 1987 (/« D. F. Parmelee and J. M. Parmelee, unpublished). In 

 all years at Cape Peirce, complete clutches of four eggs were found 

 between 31 May and 19 June, and fledged young were common on the 

 mudflats of Nanvak Bay by mid-July. Most adults were absent from nesting 

 territories by early July and from intertidal areas by early August. 



Western sandpipers were abundant fall migrants along the coast, 

 primarily in estuarine areas, at the mouths of rivers, and at mudflats. Fall 

 migrants were common at Nanvak Bay beginning 25 June (peak, 509 birds 

 on 20 August 1973) and at Goodnews and Chagvan bays and the Kisaralik 

 River in July. M. Brown et al. (unpublished) found one to five birds 

 per day on 8, 9, and 11 August 1985 at the Kisaralik River. A few birds 

 remained at Nanvak Bay as late as I6 September. R. Macintosh (unpub- 



