Species · Virginia · BBS 2025 Release · 1966–2024
Clapper Rail Population Trend in Virginia
Clapper Rail in Virginia has fallen sharply: down 61% on the route-weighted index since 1973.
-61%Since 1973
5Routes In State
28Years
Notable Clapper Rail Trends in Virginia
long arc declinecomputed index
Clapper Rail has fallen sharply in Virginia: down 61% on the route-weighted index since 1973.
Clapper Rail Population Forecast in Virginia
If the recent trend holds, Clapper Rail in Virginia is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±29.9%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.01Projected 2029 index
0.00–0.0795% range
±29.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.01 | 0.00 | 0.07 |
| 2026 | 0.01 | 0.00 | 0.07 |
| 2027 | 0.01 | 0.00 | 0.07 |
| 2028 | 0.01 | 0.00 | 0.07 |
| 2029 | 0.01 | 0.00 | 0.07 |
Clapper Rail Survey Routes in Virginia
| Cape Charles | 5 | 1996 | 1996 |
| White Stone | 2 | 2018 | 2018 |
| Quinby | 1 | 2012 | 1968 |
| Gloucester | 1 | 2008 | 1996 |
| Chincoteag W | 1 | 2024 | 1996 |
Clapper Rail Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.