Species · BCR 13 · BBS 2025 Release · 1966–2024
Hairy Woodpecker In Lower Great Lakes / St. Lawrence Plain
Hairy Woodpecker in Lower Great Lakes / St. Lawrence Plain has surged: up 153% on the route-weighted index since 1968.
+153%Since 1968
85Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Hairy Woodpecker has surged in Lower Great Lakes / St. Lawrence Plain: up 153% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Hairy Woodpecker in Lower Great Lakes / St. Lawrence Plain is projected to stay roughly flat through 2029, near 1.0 (95% range 0.66–1.4). A 5-year backtest shows a typical error of ±11.4%, with 100% of held-out values landing inside the 95% band.
+3%Change by 2029
1.0Projected 2029 index
0.66–1.495% range
±11.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.99 | 0.62 | 1.4 |
| 2026 | 1.0 | 0.63 | 1.4 |
| 2027 | 1.0 | 0.64 | 1.4 |
| 2028 | 1.0 | 0.65 | 1.4 |
| 2029 | 1.0 | 0.66 | 1.4 |
Routes In Lower Great Lakes / St. Lawrence Plain
| Catskills | NEW-YORK | 4 | 2015 |
| North Easton | NEW-YORK | 4 | 2024 |
| Duanesburg | NEW-YORK | 3 | 2024 |
| Watertown | NEW-YORK | 3 | 2012 |
| N Wilmurt | NEW-YORK | 3 | 1998 |
| Parishville | NEW-YORK | 3 | 2024 |
| Ellenburg | NEW-YORK | 3 | 2005 |
| Balmat | NEW-YORK | 3 | 2007 |
| Peru | OHIO | 3 | 1969 |
| Espyville | PENNSYLVANIA | 3 | 2024 |
| Harmonsburg | PENNSYLVANIA | 3 | 2022 |
| Colchester | VERMONT | 3 | 2022 |
| W Shokan | NEW-YORK | 2 | 2019 |
| Ghent | NEW-YORK | 2 | 2024 |
| Orleans | NEW-YORK | 2 | 2024 |
| Hamburg | NEW-YORK | 2 | 2023 |
| Sheridan | NEW-YORK | 2 | 2024 |
| Cherry Hill | NEW-YORK | 2 | 2015 |
| E Youngstown | NEW-YORK | 2 | 2023 |
| Cicero Ctr | NEW-YORK | 2 | 2024 |
| West Bangor | NEW-YORK | 2 | 1990 |
| Willsboro | NEW-YORK | 2 | 2024 |
| Philadelphia | NEW-YORK | 2 | 2024 |
| Pittsfield | OHIO | 2 | 2024 |
| Lenox | OHIO | 2 | 2015 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.