Species · New Jersey · BBS 2025 Release · 1966–2024
Acadian Flycatcher Population Trend in New Jersey
Acadian Flycatcher in New Jersey has surged: up 459% on the route-weighted index since 1969.
+459%Since 1969
27Routes In State
50Years
Notable Acadian Flycatcher Trends in New Jersey
long arc increasecomputed index
Acadian Flycatcher has surged in New Jersey: up 459% on the route-weighted index since 1969.
Acadian Flycatcher Population Forecast in New Jersey
If the recent trend holds, Acadian Flycatcher in New Jersey is projected to fall about 25% by 2029 — from 0.57 in 2024 to a central estimate of 0.43 (95% range 0.21–0.65). A 5-year backtest shows a typical error of ±33.5%, with 60% of held-out values landing inside the 95% band.
-25%Change by 2029
0.43Projected 2029 index
0.21–0.6595% range
±33.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.40 | 0.19 | 0.62 |
| 2026 | 0.41 | 0.19 | 0.63 |
| 2027 | 0.42 | 0.20 | 0.63 |
| 2028 | 0.42 | 0.20 | 0.64 |
| 2029 | 0.43 | 0.21 | 0.65 |
Acadian Flycatcher Survey Routes in New Jersey
| Pomona | 6 | 2024 | 1979 |
| Estell Manor | 5 | 2022 | 2022 |
| Hope | 4 | 1994 | 1994 |
| Kemah Lake | 3 | 2024 | 1981 |
| High Point | 2 | 2023 | 1987 |
| Winslow | 2 | 2024 | 1992 |
| Woodbury Hgt | 1 | 2023 | 1994 |
| Greenwich | 1 | 2010 | 1966 |
| Six Points | 1 | 2013 | 2013 |
| Spraguetown 2 | 1 | 2005 | 2000 |
| Albion | 1 | 2010 | 2006 |
| Bennett Mill | 1 | 1998 | 1991 |
| Holmansville | 1 | 2004 | 2004 |
| New Bedford | 1 | 2016 | 2016 |
| Midvale | 1 | 2005 | 1994 |
| Bloomsbury | 1 | 1987 | 1987 |
| Dover | 1 | 2005 | 1991 |
| Pottersville | 1 | 1988 | 1988 |
| Keyport | 1 | 2003 | 2002 |
| Cranbury | 1 | 1995 | 1995 |
| Friendship | 1 | 2019 | 1978 |
| Pedricktown 2 | 1 | 2016 | 2016 |
| Cape May Ch | 1 | 2006 | 1994 |
| Pedricktown | 1 | 2011 | 1993 |
| Spraguetown 3 | 1 | 2023 | 2023 |
Acadian Flycatcher Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.