Species · Pennsylvania · BBS 2025 Release · 1966–2024
Spotted Sandpiper Population Trend in Pennsylvania
Spotted Sandpiper in Pennsylvania has collapsed: down 93% on the route-weighted index since 1968.
-93%Since 1968
53Routes In State
49Years
Notable Spotted Sandpiper Trends in Pennsylvania
long arc declinecomputed index
Spotted Sandpiper has collapsed in Pennsylvania: down 93% on the route-weighted index since 1968.
Spotted Sandpiper Population Forecast in Pennsylvania
If the recent trend holds, Spotted Sandpiper in Pennsylvania is projected to stay roughly flat through 2027, near 0.00 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±197.7%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2027
0.00Projected 2027 index
0.00–0.0995% range
±197.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.00 | 0.00 | 0.09 |
| 2024 | 0.00 | 0.00 | 0.09 |
| 2025 | 0.00 | 0.00 | 0.09 |
| 2026 | 0.00 | 0.00 | 0.09 |
| 2027 | 0.00 | 0.00 | 0.09 |
Spotted Sandpiper Survey Routes in Pennsylvania
| Peters Mt | 6 | 1993 | 1993 |
| Teepleville | 2 | 1967 | 1967 |
| Beaver | 2 | 2021 | 1994 |
| Pine Gr Mill | 2 | 1967 | 1967 |
| Mifflintown | 2 | 1966 | 1966 |
| Mt Gretna | 2 | 1967 | 1966 |
| Jefferson | 2 | 1988 | 1966 |
| Espyville | 1 | 1999 | 1973 |
| Harmonsburg | 1 | 2007 | 2007 |
| Ferris Crnrs | 1 | 2005 | 1967 |
| Wyalusing | 1 | 1989 | 1988 |
| Akeley | 1 | 1970 | 1970 |
| Berwick | 1 | 2008 | 1993 |
| Lynch | 1 | 1999 | 1968 |
| N Washington | 1 | 2013 | 1970 |
| Russell City | 1 | 2022 | 2019 |
| Mars | 1 | 2000 | 2000 |
| Eldred | 1 | 1975 | 1975 |
| Arnot | 1 | 2003 | 2002 |
| Ravensburg | 1 | 1971 | 1970 |
| Mawr Glen | 1 | 1993 | 1993 |
| Austinville | 1 | 1970 | 1967 |
| Rush | 1 | 1998 | 1970 |
| Bow Bridge | 1 | 1974 | 1969 |
| Waller | 1 | 2000 | 1993 |
Spotted Sandpiper Population Trend in Other States
alabamaalaskaarizonacaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonrhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.