Species · BCR 30 · BBS 2025 Release · 1966–2024
Brown-headed Nuthatch In New England / Mid-Atlantic Coast
Brown-headed Nuthatch in New England / Mid-Atlantic Coast has surged: up 246% on the route-weighted index since 1968.
+246%Since 1968
21Routes In Region
55Years
Notable Signals
long arc increasecomputed index
Brown-headed Nuthatch has surged in New England / Mid-Atlantic Coast: up 246% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Brown-headed Nuthatch in New England / Mid-Atlantic Coast is projected to fall about 27% by 2029 — from 0.54 in 2024 to a central estimate of 0.40 (95% range 0.20–0.59). A 5-year backtest shows a typical error of ±31.2%, with 60% of held-out values landing inside the 95% band.
-27%Change by 2029
0.40Projected 2029 index
0.20–0.5995% range
±31.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.37 | 0.18 | 0.56 |
| 2026 | 0.38 | 0.18 | 0.57 |
| 2027 | 0.38 | 0.19 | 0.57 |
| 2028 | 0.39 | 0.20 | 0.58 |
| 2029 | 0.40 | 0.20 | 0.59 |
Routes In New England / Mid-Atlantic Coast
| Madison | MARYLAND | 15 | 2024 |
| Cokesbury | MARYLAND | 10 | 2024 |
| Pepperbox 2 | DELAWARE | 6 | 2024 |
| Walnut | MARYLAND | 5 | 2016 |
| Furnace Town | MARYLAND | 4 | 2024 |
| Honga | MARYLAND | 3 | 2024 |
| Frankford | DELAWARE | 2 | 1978 |
| Pepperbox | DELAWARE | 2 | 2016 |
| Fruitland | MARYLAND | 2 | 1966 |
| Truhart | VIRGINIA | 2 | 2023 |
| Holleyville | DELAWARE | 1 | 1975 |
| Georgetown | DELAWARE | 1 | 2021 |
| Melitota | MARYLAND | 1 | 1989 |
| Newark | MARYLAND | 1 | 2024 |
| Snow Hill | MARYLAND | 1 | 1975 |
| Island Creek | MARYLAND | 1 | 2022 |
| Berlin | MARYLAND | 1 | 2021 |
| Indiantown | MARYLAND | 1 | 2005 |
| White Stone | VIRGINIA | 1 | 2024 |
| Quinby | VIRGINIA | 1 | 2024 |
| Chincoteag W | VIRGINIA | 1 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.