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

Generalists In Wyoming

All statesWyoming

84 species in this guild. As a group they are -23%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1970.

Guild SignalsNotable 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 generalists in Wyoming. See the full index history below.

Generalists In Wyoming Population Forecast

If the recent trend holds, Generalists in Wyoming is projected to fall about 33% by 2029 — from 2.8 in 2024 to a central estimate of 1.9 (95% range 1.1–2.6). A 5-year backtest shows a typical error of ±22.8%, with 60% of held-out values landing inside the 95% band.

-33%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 →
1.9Projected 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 →
1.1–2.695% 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 →
±22.8%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, Generalists in Wyoming is projected to fall about 33% by 2029 — from 2.8 in 2024 to a central estimate of 1.9 (95% range 1.1–2.6). A 5-year backtest shows a typical error of ±22.8%, with 60% 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 →
20252.01.22.7
20261.91.22.6
20271.91.22.6
20281.91.22.6
20291.91.12.6

Member Species In Wyoming

Generalists species in Wyoming.
TrendPercent 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 →
Canada JayCorvidae-93%
Great Horned OwlStrigidae-90%
Black-billed CuckooCuculidae-88%
Pinyon JayCorvidae-87%
Chestnut-collared LongspurCalcariidae-80%
Greater Sage-GrousePhasianidae-80%
Yellow-billed CuckooCuculidae-77%
Evening GrosbeakFringillidae-74%
Dusky GrousePhasianidae-65%
Steller's JayCorvidae-64%
Clay-colored SparrowPasserellidae-64%
MerlinFalconidae-63%
American DipperCinclidae-62%
Rock PigeonColumbidae-59%
American GoshawkAccipitridae-53%
Indigo BuntingCardinalidae-53%
Brewer's BlackbirdIcteridae-52%
Cooper's HawkAccipitridae-52%
Calliope HummingbirdTrochilidae-51%
Ruffed GrousePhasianidae-49%
Common GrackleIcteridae-45%
Wild TurkeyPhasianidae-44%
Fox SparrowPasserellidae-42%
Ferruginous HawkAccipitridae-41%
Lazuli BuntingCardinalidae-36%
Pine GrosbeakFringillidae-36%
Prairie FalconFalconidae-34%
Belted KingfisherAlcedinidae-31%
Black-billed MagpieCorvidae-29%
Brown ThrasherMimidae-28%
Short-eared OwlStrigidae-24%
Chipping SparrowPasserellidae-19%
Northern HarrierAccipitridae-19%
Sharp-shinned HawkAccipitridae-13%
Mourning DoveColumbidae-11%
Orchard OrioleIcteridae-10%
Red-winged BlackbirdIcteridae-4%
Western TanagerCardinalidae-1%
Yellow-breasted ChatIcteriidae+5%
Burrowing OwlStrigidae+7%
Red CrossbillFringillidae+11%
Loggerhead ShrikeLaniidae+11%
Peregrine FalconFalconidae+19%
House SparrowPasseridae+22%
Pine SiskinFringillidae+23%
White-crowned SparrowPasserellidae+27%
Yellow-headed BlackbirdIcteridae+29%
Northern MockingbirdMimidae+34%
Bullock's OrioleIcteridae+35%
American PipitMotacillidae+37%
Rufous HummingbirdTrochilidae+39%
American KestrelFalconidae+41%
Cassin's FinchFringillidae+41%
American GoldfinchFringillidae+43%
Brewer's SparrowPasserellidae+46%
Sharp-tailed GrousePhasianidae+56%
OspreyPandionidae+70%
Blue JayCorvidae+72%
Green-tailed TowheePasserellidae+84%
Red-tailed HawkAccipitridae+88%
Common RavenCorvidae+89%
Gray CatbirdMimidae+90%
Sage ThrasherMimidae+96%
Sagebrush SparrowPasserellidae+105%
Field SparrowPasserellidae+118%
Spotted TowheePasserellidae+125%
Cedar WaxwingBombycillidae+134%
Song SparrowPasserellidae+137%
Blue GrosbeakCardinalidae+149%
Black-headed GrosbeakCardinalidae+159%
House FinchFringillidae+162%
Swainson's HawkAccipitridae+171%
Golden EagleAccipitridae+179%
Clark's NutcrackerCorvidae+187%
Thick-billed LongspurCalcariidae+192%
Lincoln's SparrowPasserellidae+200%
American CrowCorvidae+202%
Turkey VultureCathartidae+322%
ChukarPhasianidae+365%
Brown-headed CowbirdIcteridae+388%
Broad-tailed HummingbirdTrochilidae+517%
European StarlingSturnidae+544%
Eurasian Collared-DoveColumbidae+562%
Bald EagleAccipitridae+711%

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