Species · South Dakota · BBS 2025 Release · 1966–2024

Eastern Bluebird Population Trend in South Dakota

Eastern Bluebird in South Dakota has declined: down 31% on the route-weighted index since 1969.

-31%Since 1969
40Routes In State
51Years

Notable Eastern Bluebird Trends in South Dakota

No notable trend signals for Eastern Bluebird in South Dakota. See the full index history below.

Eastern Bluebird Population Forecast in South Dakota

If the recent trend holds, Eastern Bluebird in South Dakota is projected to rise about 27% by 2029 — from 0.23 in 2024 to a central estimate of 0.29 (95% range 0.05–0.52). A 5-year backtest shows a typical error of ±350.7%, with 60% of held-out values landing inside the 95% band.

+27%Change by 2029
0.29Projected 2029 index
0.050.5295% range
±350.7%Backtest error
19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.280.040.51
20260.280.040.52
20270.280.050.52
20280.290.050.52
20290.290.050.52

Eastern Bluebird Survey Routes in South Dakota

Routes recording Eastern Bluebird in South Dakota.
Gorman420102007
Wind Cave Np320241999
Tripp220151971
Howard219951970
Geddes220181967
Volga219891969
Wilmot220161967
Conde219831983
Custer220242014
Reva220121993
White River220131998
Hazelrodt220231997
Lennox119921992
Chamberlain120111968
Winner120231988
Rosebud120112009
Raymond120151967
Roswell119931973
Broadland120011989
Lane119991968
Crow Creek120182009
Ft Thompson120041968
Veblen120181971
Britton120171969
Gettysburg120182018

Eastern Bluebird Population Trend in Other States

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.