BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Ruddy Duck In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieWaterfowl

Ruddy Duck in Central Mixed Grass Prairie has collapsed: down 95% on the route-weighted index since 1970.

-95%Since 1970
14Routes In Region
45Years

Notable Signals

long arc declinecomputed index

Ruddy Duck has collapsed in Central Mixed Grass Prairie: down 95% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Ruddy Duck in Central Mixed Grass Prairie is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.39). A 5-year backtest shows a typical error of ±124.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.00Projected 2029 index
0.00–0.3995% range
±124.4%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
20250.000.000.39
20260.000.000.39
20270.000.000.39
20280.000.000.39
20290.000.000.39

Routes In Central Mixed Grass Prairie

Routes recording Ruddy Duck in Central Mixed Grass Prairie.
BrownleeNEBRASKA192016
Swan LakeNEBRASKA42019
HopewellKANSAS32009
StrattonNEBRASKA22015
Piester LakeNEBRASKA22000
KennedyNEBRASKA22016
Crescent LkNEBRASKA22016
AlbertKANSAS12023
PhillipsburgKANSAS11985
LoganKANSAS11980
GordonNEBRASKA12015
Wheeler CoNEBRASKA12024
NenzelNEBRASKA12019
Wichita Mts WestOKLAHOMA12017

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