Species · South Dakota · BBS 2025 Release · 1966–2024
Northern Mockingbird Population Trend in South Dakota
Northern Mockingbird in South Dakota has fallen sharply: down 55% on the route-weighted index since 1972.
-55%Since 1972
13Routes In State
19Years
Notable Northern Mockingbird Trends in South Dakota
long arc declinecomputed index
Northern Mockingbird has fallen sharply in South Dakota: down 55% on the route-weighted index since 1972.
Northern Mockingbird Population Forecast in South Dakota
If the recent trend holds, Northern Mockingbird in South Dakota is projected to stay roughly flat through 2027, near 0.04 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±75.5%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2027
0.04Projected 2027 index
0.00–0.1095% range
±75.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.04 | 0.00 | 0.10 |
| 2024 | 0.04 | 0.00 | 0.10 |
| 2025 | 0.04 | 0.00 | 0.10 |
| 2026 | 0.04 | 0.00 | 0.10 |
| 2027 | 0.04 | 0.00 | 0.10 |
Northern Mockingbird Survey Routes in South Dakota
Northern Mockingbird Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.