BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Ruddy Duck In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauWaterfowl

Ruddy Duck in Southern Rockies / Colorado Plateau has surged: up 722% on the route-weighted index since 1973.

+722%Since 1973
34Routes In Region
48Years

Notable Signals

long arc increasecomputed index

Ruddy Duck has surged in Southern Rockies / Colorado Plateau: up 722% on the route-weighted index since 1973.

Forecast

If the recent trend holds, Ruddy Duck in Southern Rockies / Colorado Plateau is projected to fall about 18% by 2029 — from 0.40 in 2024 to a central estimate of 0.33 (95% range 0.13–0.53). A 5-year backtest shows a typical error of ±51.9%, with 100% of held-out values landing inside the 95% band.

-18%Change by 2029
0.33Projected 2029 index
0.13–0.5395% range
±51.9%Backtest error
19702029
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
20250.310.110.51
20260.320.120.51
20270.320.120.52
20280.330.130.52
20290.330.130.53

Routes In Southern Rockies / Colorado Plateau

Routes recording Ruddy Duck in Southern Rockies / Colorado Plateau.
GuffeyCOLORADO252015
Rio Grnds RsCOLORADO152024
Mcphee Res.COLORADO152024
DinosaurCOLORADO82024
PiedraCOLORADO62023
DulceNEW-MEXICO62024
Main CanyonUTAH62022
VernalUTAH62012
DoloresCOLORADO51984
Cortez 2COLORADO52015
Dixie NfUTAH52019
AlamosaCOLORADO42024
Baxter PassCOLORADO41997
AltonUTAH32011
FalfaCOLORADO22014
WaldenCOLORADO22021
San LuisCOLORADO21993
TincupCOLORADO22007
Cochetopa PassCOLORADO22024
Angel Fire 2NEW-MEXICO22017
CapulinNEW-MEXICO21993
M Warner ResUTAH22024
HatchUTAH22003
BicknellUTAH22008
BrookhurstWYOMING22017

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