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

Red Crossbill Population Trend in Wyoming

All statesGeneralists

Red Crossbill in Wyoming has edged up: up 11% on the route-weighted index since 1970.

+11%Since 1970TrendPercent 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 →
45Routes 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 →
54YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Red Crossbill 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 Red Crossbill in Wyoming. See the full index history below.

Red Crossbill Population Forecast in Wyoming

If the recent trend holds, Red Crossbill in Wyoming is projected to fall about 10% by 2029 — from 1.2 in 2024 to a central estimate of 1.1 (95% range 0.00–5.9). A 5-year backtest shows a typical error of ±11.2%, with 100% of held-out values landing inside the 95% band.

-10%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 →
1.1Projected 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 →
0.00–5.995% 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 →
±11.2%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, Red Crossbill in Wyoming is projected to fall about 10% by 2029 — from 1.2 in 2024 to a central estimate of 1.1 (95% range 0.00–5.9). A 5-year backtest shows a typical error of ±11.2%, with 100% 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 →
20251.20.006.0
20261.20.006.0
20271.10.005.9
20281.10.005.9
20291.10.005.9

Red Crossbill Survey Routes in Wyoming

Routes recording Red Crossbill 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 →
Moskee7220011980
Fletcher Pk4020161979
Sundance2320241975
Crazy Woman2320241979
Warbonnet1720241999
Ryan Park1520232012
Yellowstone1420221987
West Thumb1019821982
Dayton1020241982
Moskee 21020212002
Seely819991996
Colter Bay 2820242019
Moskee 3820242022
Brookhurst520001972
Leo520122012
Ne Entrance420042003
Redbird419841984
Savery419931989
Buford420181979
Moose419901976
Pine Bluff419811981
Ethete320232023
Fiddler Lk320241982
Meadowdale319841984
Mtn View320242021

Red Crossbill Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradogeorgiaidahoillinoismainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-carolinanorth-dakotaoregonpennsylvaniasouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsin

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