Species · BCR 30 · BBS 2025 Release · 1966–2024
Barred Owl In New England / Mid-Atlantic Coast
Barred Owl in New England / Mid-Atlantic Coast has surged: up 344% on the route-weighted index since 1968.
+344%Since 1968
92Routes In Region
57Years
Notable Signals
long arc increasecomputed index
Barred Owl has surged in New England / Mid-Atlantic Coast: up 344% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Barred Owl in New England / Mid-Atlantic Coast is projected to fall about 32% by 2029 — from 0.24 in 2024 to a central estimate of 0.16 (95% range 0.07–0.26). A 5-year backtest shows a typical error of ±53.5%, with 40% of held-out values landing inside the 95% band.
-32%Change by 2029
0.16Projected 2029 index
0.07–0.2695% range
±53.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.15 | 0.06 | 0.25 |
| 2026 | 0.16 | 0.06 | 0.25 |
| 2027 | 0.16 | 0.06 | 0.26 |
| 2028 | 0.16 | 0.06 | 0.26 |
| 2029 | 0.16 | 0.07 | 0.26 |
Routes In New England / Mid-Atlantic Coast
| Belchertown | MASSACHUSETTS | 5 | 2024 |
| Greenwich | CONNECTICUT | 4 | 2014 |
| Strafford | NEW-HAMPSHIRE | 4 | 2021 |
| Mid Haddam | CONNECTICUT | 3 | 2024 |
| Beltsville | MARYLAND | 3 | 2004 |
| Cokesbury | MARYLAND | 3 | 2024 |
| Newark | MARYLAND | 3 | 1974 |
| Brentwood | NEW-HAMPSHIRE | 3 | 1971 |
| Buckingham | CONNECTICUT | 2 | 2022 |
| Uncasville | CONNECTICUT | 2 | 2018 |
| Warren | CONNECTICUT | 2 | 2010 |
| Frankford | DELAWARE | 2 | 1976 |
| Cheltenham | MARYLAND | 2 | 1988 |
| Millington | MARYLAND | 2 | 2022 |
| Melitota | MARYLAND | 2 | 2014 |
| Harmony | MARYLAND | 2 | 1986 |
| Golden Hill | MARYLAND | 2 | 2011 |
| Forest Grove | MARYLAND | 2 | 2018 |
| Island Creek | MARYLAND | 2 | 2023 |
| Holden | MASSACHUSETTS | 2 | 2022 |
| Spraguetown 3 | NEW-JERSEY | 2 | 2023 |
| Gloucester | VIRGINIA | 2 | 2009 |
| Truhart | VIRGINIA | 2 | 2024 |
| Mystic | CONNECTICUT | 1 | 2021 |
| Willimantic | CONNECTICUT | 1 | 2016 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.