Species · BCR 29 · BBS 2025 Release · 1966–2024
Common Nighthawk In Piedmont
Common Nighthawk in Piedmont has collapsed: down 97% on the route-weighted index since 1968.
-97%Since 1968
44Routes In Region
31Years
Notable Signals
long arc declinecomputed index
Common Nighthawk has collapsed in Piedmont: down 97% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Common Nighthawk in Piedmont is projected to stay roughly flat through 2021, near 0.00 (95% range 0.00–0.25). A 5-year backtest shows a typical error of ±988.3%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2021
0.00Projected 2021 index
0.00–0.2595% range
±988.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2017 | 0.00 | 0.00 | 0.25 |
| 2018 | 0.00 | 0.00 | 0.25 |
| 2019 | 0.00 | 0.00 | 0.25 |
| 2020 | 0.00 | 0.00 | 0.25 |
| 2021 | 0.00 | 0.00 | 0.25 |
Routes In Piedmont
| Pendleton | SOUTH-CAROLINA | 32 | 1968 |
| Wylliesburg | VIRGINIA | 6 | 1977 |
| Passaic | NEW-JERSEY | 2 | 1969 |
| Aspers | PENNSYLVANIA | 2 | 1981 |
| Labott | PENNSYLVANIA | 2 | 1976 |
| Ringgold | VIRGINIA | 2 | 1991 |
| Millerville | ALABAMA | 1 | 1971 |
| Lanett | ALABAMA | 1 | 1987 |
| Liberty City | ALABAMA | 1 | 1995 |
| Forsyth | GEORGIA | 1 | 1980 |
| Maxeys | GEORGIA | 1 | 1968 |
| Hollonville | GEORGIA | 1 | 1977 |
| Athens | GEORGIA | 1 | 1978 |
| Baldwin | GEORGIA | 1 | 1970 |
| Grovetown | GEORGIA | 1 | 2006 |
| Hiram | GEORGIA | 1 | 1982 |
| Rutledge | GEORGIA | 1 | 1975 |
| Silver Spg | MARYLAND | 1 | 1970 |
| Randallstown | MARYLAND | 1 | 1972 |
| Climax | NORTH-CAROLINA | 1 | 1986 |
| Mooresville | NORTH-CAROLINA | 1 | 1986 |
| Cherryville | NORTH-CAROLINA | 1 | 1966 |
| Youngsville | NORTH-CAROLINA | 1 | 1969 |
| Madison | NORTH-CAROLINA | 1 | 1976 |
| Copeland | NORTH-CAROLINA | 1 | 2016 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.