BirdAnalyst
Species · Minnesota · BBS 2025 Release · 1966–2024

Ruddy Duck Population Trend in Minnesota

All statesWaterfowl

Ruddy Duck in Minnesota has declined: down 38% on the route-weighted index since 1972.

-38%Since 1972
20Routes In State
41Years

Notable Ruddy Duck Trends in Minnesota

No notable trend signals for Ruddy Duck in Minnesota. See the full index history below.

Ruddy Duck Population Forecast in Minnesota

If the recent trend holds, Ruddy Duck in Minnesota is projected to stay roughly flat through 2029, near 0.11 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±160.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.11Projected 2029 index
0.00–0.5295% range
±160.5%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
20250.120.000.53
20260.120.000.53
20270.120.000.53
20280.110.000.52
20290.110.000.52

Ruddy Duck Survey Routes in Minnesota

Routes recording Ruddy Duck in Minnesota.
Princeton520132013
Minnetonka420021977
Chokio420191971
Tenney420141978
Glenwood320051993
Hartland220041980
Big Stone220112001
Courtland220241978
Osseo219671967
Knapp220041972
Glyndon220001998
Fairmont220032003
Le Center219991999
Bagley220022002
Sherburne Nr119911990
Dawson120132003
Appleton120111985
Gluek120042004
Mille Lacs119791979
Wylie119951995

Ruddy Duck Population Trend in Other States

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