Boreal Owl Population Trend, Habitat Use, and Dispersal: Combined Progress Report

Authors(s): G. D. Hayward and M. Koopman

Publication:

Publisher:

Publication Date: 0000-00-00

Type: progress report

Location: Laramie Wyoming

Abstract: WHAT THIS REPORT COVERS During 2000 our research group, which included 6 graduate students and a research associate, continued the field studies necessary to support the a research program examining the response of subalpine vertebrates to forest change. This report describes the efforts focused on understanding the ecology and genetic structure of boreal owls in western North America. As in the past, funding from a diverse array of organizations (Rocky Mountain Forest and Range Experiment Station, Idaho Fish and Game, several National Forests, Global Forest, and the American Museum of Natural History) supported our field studies of boreal owls. Although individual grants supported fieldwork directed at particular questions, the research and management studies on boreal owls are all related. Therefore, as in the past few years, we chose to write a single progress report integrating the work from several projects. Because none of these projects is completed, this report is a summary and designed to describe the field-work and analysis accomplished with the funding we received. More extensive analysis and products will be produced during the coming years and one manuscript is currently in review. Bridger-Teton National Forest, Wyoming We hung 100 boxes in the Bridger-Teton National Forest throughout the Gray?s River watershed in summer, 1998. These boxes were monitored for use in June-July 1999 and 2000 (Table 2). No owls used the boxes in 1999, but we located 7 saw-whet owl nests in 2000 (Tables 2 and 3).

Keywords: animal, bird, Aves, ornithology, owl, raptor, boreal owl, Aegolius funereus, population, habitat, Bridger-Teton National Forest, Teton County, Jackson Hole, Gray's River, saw-whet owl, Aegolius acadicus