We've analyzed all of the Ebird data from 2015 and determined which birding hotspots in Loudoun County, VA had the most bird sightings.

1. Horsepen Run Trail
2. Algonkian Regional Park
3. Blue Ridge Center for Environmental Stewardship
4. Banshee Reeks Nature Preserve
5. Bles Park
6. Woodmar Farm (private)
7. Elizabeth Mills Riverfront Park
8. Dulles Airport--Pond
9. Rust Nature Sanctuary
10. Claude Moore Park
11. Beagle Institute Farm