Species · BCR 30 · BBS 2025 Release · 1966–2024
Summer Tanager In New England / Mid-Atlantic Coast
Summer Tanager in New England / Mid-Atlantic Coast has surged: up 310% on the route-weighted index since 1968.
+310%Since 1968
76Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Summer Tanager has surged in New England / Mid-Atlantic Coast: up 310% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Summer Tanager in New England / Mid-Atlantic Coast is projected to fall about 23% by 2029 — from 2.4 in 2024 to a central estimate of 1.8 (95% range 1.3–2.4). A 5-year backtest shows a typical error of ±38.5%, with 0% of held-out values landing inside the 95% band.
-23%Change by 2029
1.8Projected 2029 index
1.3–2.495% range
±38.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.7 | 1.2 | 2.3 |
| 2026 | 1.8 | 1.2 | 2.3 |
| 2027 | 1.8 | 1.2 | 2.4 |
| 2028 | 1.8 | 1.2 | 2.4 |
| 2029 | 1.8 | 1.3 | 2.4 |
Routes In New England / Mid-Atlantic Coast
| Cokesbury | MARYLAND | 26 | 2024 |
| Truhart | VIRGINIA | 21 | 2024 |
| Walkers | VIRGINIA | 17 | 2023 |
| Brandon | VIRGINIA | 16 | 2024 |
| Quinby | VIRGINIA | 15 | 2024 |
| Furnace Town | MARYLAND | 11 | 2024 |
| Island Creek | MARYLAND | 10 | 2024 |
| Tall Timbers | MARYLAND | 7 | 2014 |
| Forest Grove | MARYLAND | 7 | 2023 |
| St. George'S Island | MARYLAND | 7 | 2017 |
| Berlin | MARYLAND | 7 | 2024 |
| Port Royal | VIRGINIA | 7 | 2019 |
| White Stone | VIRGINIA | 7 | 2024 |
| Pomonkey | MARYLAND | 6 | 2024 |
| Madison | MARYLAND | 6 | 2024 |
| Holleyville 2 | DELAWARE | 5 | 2024 |
| Honga | MARYLAND | 5 | 2024 |
| Newark | MARYLAND | 5 | 2024 |
| Walnut | MARYLAND | 5 | 2024 |
| Milton 2 | DELAWARE | 4 | 2017 |
| Pepperbox 2 | DELAWARE | 4 | 2024 |
| Pomfret | MARYLAND | 4 | 2024 |
| Nottingham | MARYLAND | 4 | 2024 |
| Indiantown | MARYLAND | 4 | 2014 |
| Gloucester | VIRGINIA | 4 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.