Species · South Dakota · BBS 2025 Release · 1966–2024
Say's Phoebe Population Trend in South Dakota
Say's Phoebe in South Dakota has surged: up 287% on the route-weighted index since 1969.
+287%Since 1969
39Routes In State
57Years
Notable Say's Phoebe Trends in South Dakota
long arc increasecomputed index
Say's Phoebe has surged in South Dakota: up 287% on the route-weighted index since 1969.
Say's Phoebe Population Forecast in South Dakota
If the recent trend holds, Say's Phoebe in South Dakota is projected to rise about 136% by 2029 — from 0.18 in 2024 to a central estimate of 0.43 (95% range 0.00–0.92). A 5-year backtest shows a typical error of ±122.6%, with 100% of held-out values landing inside the 95% band.
+136%Change by 2029
0.43Projected 2029 index
0.00–0.9295% range
±122.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.43 | 0.00 | 0.92 |
| 2026 | 0.43 | 0.00 | 0.92 |
| 2027 | 0.43 | 0.00 | 0.92 |
| 2028 | 0.43 | 0.00 | 0.92 |
| 2029 | 0.43 | 0.00 | 0.92 |
Say's Phoebe Survey Routes in South Dakota
| Rockyford | 10 | 2023 | 1972 |
| Promise | 7 | 2015 | 1996 |
| Marcus | 6 | 2012 | 1999 |
| Reva | 4 | 2023 | 1987 |
| Chamberlain | 3 | 2010 | 2010 |
| Britton | 3 | 2019 | 2014 |
| Cedar Pass | 3 | 2022 | 1970 |
| S. Pioneer | 2 | 2012 | 1994 |
| Crow Creek | 2 | 2011 | 2011 |
| Wind Cave Np | 2 | 2022 | 2007 |
| Ottumwa | 2 | 1980 | 1969 |
| Lodgepole | 2 | 2024 | 1995 |
| Badlands | 2 | 2023 | 1982 |
| Tripp | 1 | 1987 | 1986 |
| Pioneer | 1 | 2021 | 1992 |
| Geddes | 1 | 1990 | 1990 |
| Cottonwood | 1 | 2008 | 1992 |
| Indian | 1 | 2024 | 2003 |
| Railroad Butte | 1 | 2000 | 1996 |
| French Creek | 1 | 2000 | 1997 |
| Forbes | 1 | 2022 | 2022 |
| Gettysburg | 1 | 1994 | 1994 |
| Long Lake | 1 | 2010 | 2002 |
| Laplant | 1 | 1975 | 1975 |
| Owanka | 1 | 1998 | 1967 |
Say's Phoebe Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.