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

Cinnamon Teal Population Trend in Colorado

All statesWaterfowl

Cinnamon Teal in Colorado has declined: down 32% on the route-weighted index since 1971.

-32%Since 1971
46Routes In State
51Years

Notable Cinnamon Teal Trends in Colorado

No notable trend signals for Cinnamon Teal in Colorado. See the full index history below.

Cinnamon Teal Population Forecast in Colorado

If the recent trend holds, Cinnamon Teal in Colorado is projected to rise about 60% by 2029 — from 0.15 in 2024 to a central estimate of 0.25 (95% range 0.00–0.70). A 5-year backtest shows a typical error of ±50.2%, with 100% of held-out values landing inside the 95% band.

+60%Change by 2029
0.25Projected 2029 index
0.00–0.7095% range
±50.2%Backtest error
19692029
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
20250.260.000.70
20260.250.000.70
20270.250.000.70
20280.250.000.70
20290.250.000.70

Cinnamon Teal Survey Routes in Colorado

Routes recording Cinnamon Teal in Colorado.
Baxter Pass620161994
Mcphee Res.620241996
Dinosaur520241995
Castleton520212021
Cortez520071988
Delta419981998
Moffat420171970
Pagosa Spgs419741972
Rio Grnds Rs420091992
Tincup420232002
Alamosa320221988
Groundhog Rs319981994
Angora320192001
Yellowjacket Pass320232010
Stillwater Pass320012001
Maybell219761971
Kiowa220121973
Dolores219851969
Mica Butte219821982
Wray Gulch220021989
Walden220051991
Cortez 2220102009
Willow Peak220102010
Tarryall220221995
Doyleville220221988

Cinnamon Teal Population Trend in Other States

alaskaarizonacaliforniaidahokansasmontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwashingtonwyoming

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