Grand Teton Np Report
Abstract
This study was initiated in 1980 to collect baseline information on the composition, density, distribution and habitat of the avifauna of the Narrowleaf Cottonwood, (Populus angustifolia) and Balsam Poplar, (Populus tacamabacca) community on a portion of the western floodplain of Pilgrim Creek. This cottonwood community has scattered trees of quaking aspen, (Populus tremuloides), engelman spruce, (Picea engelmannii) and lodgepole pine, (Pinus contorta). In restricted moister areas, several patches of alder, (Alnus incana) occur under the larger trees and a few patches of willow, (Salix sp.) are located in the wetter openings of that woodland.