Species · BCR 30 · BBS 2025 Release · 1966–2024
Carolina Chickadee In New England / Mid-Atlantic Coast
Carolina Chickadee in New England / Mid-Atlantic Coast has risen sharply: up 64% on the route-weighted index since 1968.
+64%Since 1968
101Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Carolina Chickadee has risen sharply in New England / Mid-Atlantic Coast: up 64% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Carolina Chickadee in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 6.4 (95% range 4.3–8.5). A 5-year backtest shows a typical error of ±19.5%, with 80% of held-out values landing inside the 95% band.
-5%Change by 2029
6.4Projected 2029 index
4.3–8.595% range
±19.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 6.2 | 4.1 | 8.3 |
| 2026 | 6.2 | 4.1 | 8.3 |
| 2027 | 6.3 | 4.2 | 8.4 |
| 2028 | 6.3 | 4.2 | 8.4 |
| 2029 | 6.4 | 4.3 | 8.5 |
Routes In New England / Mid-Atlantic Coast
| Island Creek | MARYLAND | 32 | 2024 |
| Largo | MARYLAND | 31 | 1981 |
| La Plata | MARYLAND | 28 | 2009 |
| Cape May Ch | NEW-JERSEY | 28 | 2013 |
| Forest Grove | MARYLAND | 27 | 2023 |
| St. George'S Island | MARYLAND | 27 | 2017 |
| Cokesbury | MARYLAND | 26 | 2024 |
| Newark | MARYLAND | 24 | 2024 |
| Winslow | NEW-JERSEY | 24 | 2024 |
| Millsboro | DELAWARE | 23 | 2024 |
| Tall Timbers | MARYLAND | 23 | 2014 |
| Pr Frederick | MARYLAND | 23 | 2024 |
| Toms River | NEW-JERSEY | 23 | 2024 |
| Millington | MARYLAND | 20 | 2024 |
| Spraguetown 3 | NEW-JERSEY | 20 | 2024 |
| Pepperbox | DELAWARE | 19 | 2016 |
| Davidsnville | MARYLAND | 19 | 2024 |
| Pomona | NEW-JERSEY | 19 | 2024 |
| Madison | MARYLAND | 17 | 2024 |
| Villas | NEW-JERSEY | 17 | 1981 |
| Lowes Xrds | DELAWARE | 15 | 1991 |
| Pepperbox 2 | DELAWARE | 15 | 2024 |
| Walnut | MARYLAND | 15 | 2024 |
| Easton | MARYLAND | 14 | 2021 |
| Honga | MARYLAND | 14 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.