How did we conduct our Bird Atlas?
We divided Loudoun County into a grid of 75 blocks, based on sections of U.S. Geological Survey quadrangle maps. Each block is approximately 10 square miles. Participants were assigned to different blocks to ensure county-wide coverage.
Volunteers used a field card to collect data on the occurrence and behavior of birds throughout Loudoun County. Data processing was handled by BBA (Breeding Bird Atlas) Explorer, an online system hosted by USGS Patuxent Wildlife Research Center. Field data was collected from April 2009 through March 2014.
What did we find out?
Check Out our Data
Check Out our Results
Check Out our Report Summary
Stay tuned for more results!
The outcomes of this project
- A new and improved Birds of Loudoun Checklist. This list now includes 305 bird species identified in the county through March 2014, with over 120 reported breeders.
- An article summarizing our Bird Atlas findings.
- Comparisons with 1985-1989 Virginia Breeding Bird Atlas data, including which species experienced the greatest increase and decrease in blocks.
- Identification of important bird areas throughout Loudoun County, with the possibility of conducting abundance surveys in these areas.
- An in-depth Birds of Loudoun print publication.
Resources for Bird Atlas Volunteers:
If you have any questions or would like more information, please contact Bird Atlas Coordinator Spring Ligi at firstname.lastname@example.org.