Species · BCR 13 · BBS 2025 Release · 1966–2024
Common Nighthawk In Lower Great Lakes / St. Lawrence Plain
Common Nighthawk in Lower Great Lakes / St. Lawrence Plain has fallen sharply: down 64% on the route-weighted index since 1969.
-64%Since 1969
24Routes In Region
24Years
Notable Signals
long arc declinecomputed index
Common Nighthawk has fallen sharply in Lower Great Lakes / St. Lawrence Plain: down 64% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Common Nighthawk in Lower Great Lakes / St. Lawrence Plain is projected to stay roughly flat through 2026, near 0.03 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±54.4%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2026
0.03Projected 2026 index
0.00–0.0995% range
±54.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.03 | 0.00 | 0.09 |
| 2023 | 0.03 | 0.00 | 0.09 |
| 2024 | 0.03 | 0.00 | 0.09 |
| 2025 | 0.03 | 0.00 | 0.09 |
| 2026 | 0.03 | 0.00 | 0.09 |
Routes In Lower Great Lakes / St. Lawrence Plain
| Peru | OHIO | 5 | 1969 |
| Wayland | OHIO | 2 | 1993 |
| Highland | NEW-YORK | 1 | 1986 |
| Austerlitz | NEW-YORK | 1 | 1986 |
| Duanesburg | NEW-YORK | 1 | 1987 |
| Canadice L | NEW-YORK | 1 | 1973 |
| Hamburg | NEW-YORK | 1 | 2013 |
| Cherry Hill | NEW-YORK | 1 | 1968 |
| St Johnsburg | NEW-YORK | 1 | 1989 |
| E Youngstown | NEW-YORK | 1 | 1992 |
| Salem | NEW-YORK | 1 | 2021 |
| North Easton | NEW-YORK | 1 | 1987 |
| Ogdensburg | NEW-YORK | 1 | 1989 |
| Willsboro | NEW-YORK | 1 | 1995 |
| Pittsfield | OHIO | 1 | 2013 |
| Middlefield | OHIO | 1 | 1973 |
| Strongsville | OHIO | 1 | 1979 |
| Herner Crns | OHIO | 1 | 1983 |
| Hebron | OHIO | 1 | 2015 |
| Slippery Rk | PENNSYLVANIA | 1 | 1989 |
| Clover | PENNSYLVANIA | 1 | 1989 |
| Ferris Crnrs | PENNSYLVANIA | 1 | 1996 |
| Sugar Grove | PENNSYLVANIA | 1 | 2003 |
| North Pownal | VERMONT | 1 | 1976 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.