Species · BCR 13 · BBS 2025 Release · 1966–2024
Blue-gray Gnatcatcher In Lower Great Lakes / St. Lawrence Plain
Blue-gray Gnatcatcher in Lower Great Lakes / St. Lawrence Plain has held roughly steady: up 3% on the route-weighted index since 1968.
+3%Since 1968
56Routes In Region
57Years
Notable Signals
No notable trend signals for Blue-gray Gnatcatcher in Lower Great Lakes / St. Lawrence Plain. See the full index history below.
Forecast
If the recent trend holds, Blue-gray Gnatcatcher in Lower Great Lakes / St. Lawrence Plain is projected to rise about 82% by 2029 — from 0.15 in 2024 to a central estimate of 0.27 (95% range 0.04–0.49). A 5-year backtest shows a typical error of ±86.6%, with 100% of held-out values landing inside the 95% band.
+82%Change by 2029
0.27Projected 2029 index
0.04–0.4995% range
±86.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.26 | 0.03 | 0.49 |
| 2026 | 0.26 | 0.04 | 0.49 |
| 2027 | 0.26 | 0.04 | 0.49 |
| 2028 | 0.26 | 0.04 | 0.49 |
| 2029 | 0.27 | 0.04 | 0.49 |
Routes In Lower Great Lakes / St. Lawrence Plain
| W Shokan | NEW-YORK | 5 | 2019 |
| Harris Hill | NEW-YORK | 5 | 2005 |
| Churchville | NEW-YORK | 4 | 2019 |
| Clinton | NEW-YORK | 4 | 1993 |
| Valley City | OHIO | 3 | 2024 |
| Catskills | NEW-YORK | 2 | 2015 |
| Oriskany Fls | NEW-YORK | 2 | 2022 |
| Cayuga | NEW-YORK | 2 | 2023 |
| E Youngstown | NEW-YORK | 2 | 2016 |
| Byron | NEW-YORK | 2 | 1989 |
| Cicero Ctr | NEW-YORK | 2 | 2000 |
| North Easton | NEW-YORK | 2 | 2023 |
| Pittsfield | OHIO | 2 | 2022 |
| Herner Crns | OHIO | 2 | 2016 |
| Hiram | OHIO | 2 | 2018 |
| Espyville | PENNSYLVANIA | 2 | 2017 |
| Ferris Crnrs | PENNSYLVANIA | 2 | 2024 |
| Shaftsbury | VERMONT | 2 | 2005 |
| Rhinebeck | NEW-YORK | 1 | 2024 |
| Highland | NEW-YORK | 1 | 2006 |
| Austerlitz | NEW-YORK | 1 | 1974 |
| Ghent | NEW-YORK | 1 | 2023 |
| Duanesburg | NEW-YORK | 1 | 2023 |
| Romulus | NEW-YORK | 1 | 1986 |
| Macdougall | NEW-YORK | 1 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.