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

Black-capped Chickadee Population Trend in Wyoming

All statesForest birds

Black-capped Chickadee in Wyoming has held roughly steady: down 0% on the route-weighted index since 1971.

-0%Since 1971TrendPercent 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 →
73Routes 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 →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Black-capped Chickadee 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 Black-capped Chickadee in Wyoming. See the full index history below.

Black-capped Chickadee Population Forecast in Wyoming

If the recent trend holds, Black-capped Chickadee in Wyoming is projected to rise about 55% by 2029 — from 0.48 in 2024 to a central estimate of 0.75 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±34.7%, with 80% of held-out values landing inside the 95% band.

+55%Change by 2029TrendPercent 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 →
0.75Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–1.595% 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 →
±34.7%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, Black-capped Chickadee in Wyoming is projected to rise about 55% by 2029 — from 0.48 in 2024 to a central estimate of 0.75 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±34.7%, with 80% of held-out values landing inside the 95% band.19682029
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 →
20250.760.001.5
20260.760.001.5
20270.750.001.5
20280.750.001.5
20290.750.001.5

Black-capped Chickadee Survey Routes in Wyoming

Routes recording Black-capped Chickadee 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 →
Colter Bay 23020212019
Moran1420162002
Sundance920241975
Moskee920011980
Wilson720241979
Moskee 2720212002
Bald Mtn620221995
Green River619821977
Seely 2520242001
Warbonnet519981990
Colter Bay419991968
Recluse420221987
Soda Well420231982
Crowheart420162004
Soda Lake420241980
Moskee 3420242022
Walcott420211985
Chugwater419811981
Buford319781977
Moose320231979
Raven319991995
Daniel319841980
Yellowstone220002000
Brookhurst220221968
Yoder219971986

Black-capped Chickadee Population Trend in Other States

alaskacaliforniacoloradoconnecticutidahoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsin

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