Species · North Dakota · BBS 2025 Release · 1966–2024
Say's Phoebe Population Trend in North Dakota
Say's Phoebe in North Dakota has surged: up 385% on the route-weighted index since 1969.
+385%Since 1969
42Routes In State
57Years
Notable Say's Phoebe Trends in North Dakota
long arc increasecomputed index
Say's Phoebe has surged in North Dakota: up 385% on the route-weighted index since 1969.
Say's Phoebe Population Forecast in North Dakota
If the recent trend holds, Say's Phoebe in North Dakota is projected to stay roughly flat through 2029, near 1.3 (95% range 0.75–1.8). A 5-year backtest shows a typical error of ±25.4%, with 60% of held-out values landing inside the 95% band.
-3%Change by 2029
1.3Projected 2029 index
0.75–1.895% range
±25.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.2 | 0.69 | 1.7 |
| 2026 | 1.2 | 0.71 | 1.7 |
| 2027 | 1.2 | 0.72 | 1.7 |
| 2028 | 1.2 | 0.74 | 1.8 |
| 2029 | 1.3 | 0.75 | 1.8 |
Say's Phoebe Survey Routes in North Dakota
| Golva | 7 | 2023 | 1979 |
| Tobacco | 6 | 2019 | 1968 |
| Bentley | 6 | 2024 | 1988 |
| Dunn Center | 4 | 2024 | 1969 |
| Lark | 4 | 1981 | 1968 |
| Bowman | 4 | 2024 | 1968 |
| Zap | 4 | 2024 | 1975 |
| Dickinson | 3 | 2024 | 1968 |
| Powers Lake | 3 | 2024 | 1990 |
| Emerado | 2 | 2024 | 2006 |
| Carpio | 2 | 2023 | 1967 |
| Roosevelt Pk | 2 | 2019 | 1983 |
| Cedar Creek | 2 | 2022 | 1969 |
| Solen | 2 | 2024 | 2008 |
| Forman | 1 | 2024 | 2013 |
| Carson | 1 | 2024 | 1988 |
| Edgeley | 1 | 2024 | 2010 |
| Lake George | 1 | 2016 | 1992 |
| Danzig | 1 | 2010 | 1992 |
| Cooperstown | 1 | 2015 | 1991 |
| Wimbledon | 1 | 2013 | 2013 |
| Horsehead Lk | 1 | 2024 | 1982 |
| Buchanan | 1 | 2021 | 1977 |
| Nash | 1 | 1985 | 1985 |
| Lakota | 1 | 1981 | 1981 |
Say's Phoebe Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.