Species · Virginia · BBS 2025 Release · 1966–2024
Herring Gull Population Trend in Virginia
Herring Gull in Virginia has declined: down 46% on the route-weighted index since 1968.
-46%Since 1968
9Routes In State
49Years
Notable Herring Gull Trends in Virginia
No notable trend signals for Herring Gull in Virginia. See the full index history below.
Herring Gull Population Forecast in Virginia
If the recent trend holds, Herring Gull in Virginia is projected to rise about 12× by 2027 — from 0.09 in 2022 to a central estimate of 1.1 (95% range 0.00–3.6). A 5-year backtest shows a typical error of ±836.3%, with 100% of held-out values landing inside the 95% band.
12×Change by 2027
1.1Projected 2027 index
0.00–3.695% range
±836.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 1.0 | 0.00 | 3.6 |
| 2024 | 1.0 | 0.00 | 3.6 |
| 2025 | 1.0 | 0.00 | 3.6 |
| 2026 | 1.0 | 0.00 | 3.6 |
| 2027 | 1.1 | 0.00 | 3.6 |
Herring Gull Survey Routes in Virginia
| Backbay | 50 | 1971 | 1966 |
| Colonial Pky | 26 | 1998 | 1997 |
| Cape Charles | 24 | 2018 | 1992 |
| Quinby | 11 | 2006 | 1967 |
| Chincoteag W | 4 | 2022 | 1992 |
| Gloucester | 2 | 2017 | 1995 |
| Truhart | 2 | 2005 | 1997 |
| Pungo | 1 | 1993 | 1993 |
| White Stone | 1 | 2013 | 1975 |
Herring Gull Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.