Species · Maryland · BBS 2025 Release · 1966–2024
Virginia Rail Population Trend in Maryland
Virginia Rail in Maryland has risen sharply: up 51% on the route-weighted index since 1972.
+51%Since 1972
3Routes In State
51Years
Notable Virginia Rail Trends in Maryland
long arc increasecomputed index
Virginia Rail has risen sharply in Maryland: up 51% on the route-weighted index since 1972.
Virginia Rail Population Forecast in Maryland
If the recent trend holds, Virginia Rail in Maryland is projected to fall about 42% by 2029 — from 0.12 in 2024 to a central estimate of 0.07 (95% range 0.00–0.18). A 5-year backtest shows a typical error of ±63.7%, with 100% of held-out values landing inside the 95% band.
-42%Change by 2029
0.07Projected 2029 index
0.00–0.1895% range
±63.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.07 | 0.00 | 0.18 |
| 2026 | 0.07 | 0.00 | 0.18 |
| 2027 | 0.07 | 0.00 | 0.18 |
| 2028 | 0.07 | 0.00 | 0.18 |
| 2029 | 0.07 | 0.00 | 0.18 |
Virginia Rail Survey Routes in Maryland
Virginia Rail Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.