BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

Cinnamon Teal Population Trend in Wyoming

All statesWaterfowl

Cinnamon Teal in Wyoming has declined: down 37% on the route-weighted index since 1980.

-37%Since 1980TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
59Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
47YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Cinnamon Teal Trends in WyomingNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

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

Cinnamon Teal Population Forecast in Wyoming

If the recent trend holds, Cinnamon Teal in Wyoming is projected to rise about 21% by 2030 — from 0.16 in 2025 to a central estimate of 0.19 (95% range 0.00–0.54). A 5-year backtest shows a typical error of ±86.7%, with 100% of held-out values landing inside the 95% band.

+21%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.19Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.5495% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±86.7%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Cinnamon Teal in Wyoming is projected to rise about 21% by 2030 — from 0.16 in 2025 to a central estimate of 0.19 (95% range 0.00–0.54). A 5-year backtest shows a typical error of ±86.7%, with 100% of held-out values landing inside the 95% band.19702030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20260.200.000.55
20270.200.000.55
20280.200.000.55
20290.200.000.55
20300.190.000.54

Cinnamon Teal Survey Routes in Wyoming

Routes recording Cinnamon Teal in Wyoming.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Hayden Val1019861985
Seedskadee1020161995
Anchor820162016
Gebo620152015
Fontenelle520161983
Sweetwater519911991
Brookhurst420051970
Meeteetse420112011
Tensleep419981998
Flamin Gorge420182017
Ne Entrance319981998
Wyarno320151988
Yellowstone320251987
Boulder320181982
Dubois220231991
Midvale219881988
Nowood220161988
Ervay220181987
Rozet220252025
Gvnt Valley220092008
Riverside220111991
Yoder220251988
Hunter Peak220251986
Lovell219891989
Dayton219831983

Cinnamon Teal Population Trend in Other States

alaskaarizonacaliforniacoloradoidahokansasmontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwashington

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.