Aerial Surveys of Cliff- Nesting Raptors in the National Petroleum Reserve-Alaska 1999, with Comparison to 1977

by U.S. Bureau of Land Management

In summer 1999, an extensive aerial survey of cliff-nesting raptors was conducted in the National Petroleum Reserve-Alaska (NPR-A) on Alaska's North Slope. No similarly extensive survey had been conducted since 1977. In the interim, the regional population of the Arctic peregrine falcon (Falco peregrinus tundrius) had increased, as shown by monitoring along the Colville River. The 1999 survey assessed the present abundance and distri-bution of the...

• Format: Paperback
• Language: English
• ISBN: 1505291836
• ISBN13: 9781505291834
• Release Date: January 2015
• Publisher: Createspace Independent Publishing Platform
• Length: 76 Pages
• Weight: 0.44 lbs.
• Dimensions: 0.2" x 8.5" x 11.0"