Species · BCR 13 · BBS 2025 Release · 1966–2024
Barred Owl In Lower Great Lakes / St. Lawrence Plain
Barred Owl in Lower Great Lakes / St. Lawrence Plain has surged: up 147% on the route-weighted index since 1969.
+147%Since 1969
39Routes In Region
51Years
Notable Signals
long arc increasecomputed index
Barred Owl has surged in Lower Great Lakes / St. Lawrence Plain: up 147% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Barred Owl in Lower Great Lakes / St. Lawrence Plain is projected to stay roughly flat through 2029, near 0.10 (95% range 0.01–0.18). A 5-year backtest shows a typical error of ±55.7%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.10Projected 2029 index
0.01–0.1895% range
±55.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.09 | 0.00 | 0.18 |
| 2026 | 0.09 | 0.00 | 0.18 |
| 2027 | 0.09 | 0.00 | 0.18 |
| 2028 | 0.09 | 0.01 | 0.18 |
| 2029 | 0.10 | 0.01 | 0.18 |
Routes In Lower Great Lakes / St. Lawrence Plain
| Hiram | OHIO | 4 | 2015 |
| Herner Crns | OHIO | 3 | 2023 |
| Catskills | NEW-YORK | 2 | 2015 |
| Canadice L | NEW-YORK | 2 | 2005 |
| Mt Morris | NEW-YORK | 2 | 2016 |
| Pittsfield | OHIO | 2 | 2021 |
| New Somerset | OHIO | 2 | 1977 |
| Harrisville | PENNSYLVANIA | 2 | 2003 |
| Rhinebeck | NEW-YORK | 1 | 2017 |
| Austerlitz | NEW-YORK | 1 | 2007 |
| Ballston Lk | NEW-YORK | 1 | 1970 |
| Oriskany Fls | NEW-YORK | 1 | 2016 |
| Branchport | NEW-YORK | 1 | 2024 |
| Randolph | NEW-YORK | 1 | 2018 |
| Nashville | NEW-YORK | 1 | 1976 |
| Byron | NEW-YORK | 1 | 1968 |
| Churchville | NEW-YORK | 1 | 1976 |
| Pulaski | NEW-YORK | 1 | 2022 |
| N Wilmurt | NEW-YORK | 1 | 1995 |
| Salem | NEW-YORK | 1 | 2017 |
| Argyle | NEW-YORK | 1 | 2018 |
| North Easton | NEW-YORK | 1 | 2014 |
| Parishville | NEW-YORK | 1 | 2024 |
| Hopkinton | NEW-YORK | 1 | 2014 |
| Willsboro | NEW-YORK | 1 | 2012 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.