Species · North Dakota · BBS 2025 Release · 1966–2024
Loggerhead Shrike Population Trend in North Dakota
Loggerhead Shrike in North Dakota has fallen sharply: down 68% on the route-weighted index since 1969.
-68%Since 1969
34Routes In State
57Years
Notable Loggerhead Shrike Trends in North Dakota
long arc declinecomputed index
Loggerhead Shrike has fallen sharply in North Dakota: down 68% on the route-weighted index since 1969.
Loggerhead Shrike Population Forecast in North Dakota
If the recent trend holds, Loggerhead Shrike in North Dakota is projected to rise about 37% by 2029 — from 0.22 in 2024 to a central estimate of 0.30 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±74.5%, with 100% of held-out values landing inside the 95% band.
+37%Change by 2029
0.30Projected 2029 index
0.00–1.195% range
±74.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.35 | 0.00 | 1.1 |
| 2026 | 0.34 | 0.00 | 1.1 |
| 2027 | 0.33 | 0.00 | 1.1 |
| 2028 | 0.32 | 0.00 | 1.1 |
| 2029 | 0.30 | 0.00 | 1.1 |
Loggerhead Shrike Survey Routes in North Dakota
| Ft Yates | 4 | 2003 | 1968 |
| Zap | 4 | 2024 | 1967 |
| Lark | 3 | 1982 | 1968 |
| Gorham | 3 | 2018 | 1968 |
| Solen | 3 | 2023 | 2005 |
| Carson | 2 | 2017 | 1989 |
| Glen Ullin | 2 | 2021 | 1982 |
| Powers Lake | 2 | 2003 | 1980 |
| Walcott | 1 | 1969 | 1969 |
| Sydney | 1 | 1977 | 1977 |
| Edgeley | 1 | 1998 | 1988 |
| Lake George | 1 | 2013 | 1968 |
| Cooperstown | 1 | 1992 | 1992 |
| Horsehead Lk | 1 | 2011 | 1980 |
| Buchanan | 1 | 1992 | 1970 |
| Niles | 1 | 1989 | 1989 |
| Regan | 1 | 2022 | 1968 |
| Dickinson | 1 | 2019 | 1968 |
| Dunn Center | 1 | 2024 | 1968 |
| Carpio | 1 | 2023 | 1967 |
| Loraine | 1 | 1998 | 1988 |
| Tobacco | 1 | 2013 | 1968 |
| Stanley | 1 | 2024 | 1969 |
| Denbigh | 1 | 2021 | 1968 |
| Bowman | 1 | 2019 | 1967 |
Loggerhead Shrike Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradofloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmichiganminnesotamississippimissourimontananebraskanevadanew-mexiconew-yorknorth-carolinaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.