Guild · Maryland · BBS 2025 Release · 1966–2024
Forest Birds In Maryland
50 species in this guild. As a group they are +76% since 1968.
Guild Signals
No notable trend signals for forest birds in Maryland. See the full index history below.
Forecast
If the recent trend holds, Forest birds in Maryland is projected to stay roughly flat through 2029, near 5.6 (95% range 5.1–6.2). A 5-year backtest shows a typical error of ±7%, with 80% of held-out values landing inside the 95% band.
-7%Change by 2029
5.6Projected 2029 index
5.1–6.295% range
±7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 5.5 | 4.9 | 6.1 |
| 2026 | 5.5 | 5.0 | 6.1 |
| 2027 | 5.6 | 5.0 | 6.1 |
| 2028 | 5.6 | 5.0 | 6.2 |
| 2029 | 5.6 | 5.1 | 6.2 |
Member Species In Maryland
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.