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

MacGillivray's Warbler Population Trend in South Dakota

All statesForest birds

MacGillivray's Warbler in South Dakota has held roughly steady: up 2% on the route-weighted index since 1993.

+2%Since 1993
10Routes In State
30Years

Notable MacGillivray's Warbler Trends in South Dakota

No notable trend signals for MacGillivray's Warbler in South Dakota. See the full index history below.

MacGillivray's Warbler Population Forecast in South Dakota

If the recent trend holds, MacGillivray's Warbler in South Dakota is projected to fall about 70% by 2029 — from 0.18 in 2024 to a central estimate of 0.05 (95% range 0.00–0.28). A 5-year backtest shows a typical error of ±48.2%, with 100% of held-out values landing inside the 95% band.

-70%Change by 2029
0.05Projected 2029 index
0.00–0.2895% range
±48.2%Backtest error
19812029
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
20250.070.000.29
20260.060.000.29
20270.060.000.29
20280.060.000.28
20290.050.000.28

MacGillivray's Warbler Survey Routes in South Dakota

Routes recording MacGillivray's Warbler in South Dakota.
Long Draw420241994
Rochford320181996
Englewood220211994
Norbeck220001993
Hazelrodt120011993
Lightning Cr120091992
Hill City120131996
Black Fox120171994
Roubaix Lk119811981
Silver City120021992

MacGillivray's Warbler Population Trend in Other States

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