KILBUCK AND AHKLUN MOUNTAIN BIRDS 



9 



Fig. 7. Nanvak Bay at low tide and adjacent dunes and wetlands. Photo byMH. Dick. 



and vegetation composed of Elymus arenarius, Honckenya peploides, 

 2ind Mertensia maritima, and dwarf shrub mat. 



The intertidal zone along more exposed shores includes a variety of 

 substrate types, including sand, fine gravel, coarse gravel, cobble, boul- 

 der, and solid rock strand and cliff. The marine portion of the study area 

 is underlain by the continental shelf and is fairly shallow. Along the 



Fig. 8. FeMeld tundra atop Cape Peirce, 21 August 1976. Photo by M. R. Petersen. 



