Guild · Montana · BBS 2025 Release · 1966–2024

Generalists In Montana

82 species in this guild. As a group they are -7% since 1970.

Guild Signals

No notable trend signals for generalists in Montana. See the full index history below.

Forecast

If the recent trend holds, Generalists in Montana is projected to fall about 23% by 2029 — from 3.4 in 2024 to a central estimate of 2.6 (95% range 2.0–3.1). A 5-year backtest shows a typical error of ±20.7%, with 40% of held-out values landing inside the 95% band.

-23%Change by 2029
2.6Projected 2029 index
2.03.195% range
±20.7%Backtest error
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 index95% low95% high
20252.62.13.2
20262.62.03.2
20272.62.03.2
20282.62.03.1
20292.62.03.1

Member Species In Montana

Generalists species in Montana.
Evening GrosbeakFringillidae-92%
Pinyon JayCorvidae-90%
Cooper's HawkAccipitridae-80%
Greater Sage-GrousePhasianidae-79%
American GoshawkAccipitridae-74%
Sharp-shinned HawkAccipitridae-74%
Steller's JayCorvidae-73%
Black-billed CuckooCuculidae-71%
Sage ThrasherMimidae-61%
Dusky GrousePhasianidae-61%
Black-chinned HummingbirdTrochilidae-56%
Brewer's BlackbirdIcteridae-55%
MerlinFalconidae-47%
White-winged CrossbillFringillidae-46%
Prairie FalconFalconidae-42%
Green-tailed TowheePasserellidae-37%
Canada JayCorvidae-36%
Northern Pygmy-OwlStrigidae-36%
American CrowCorvidae-36%
Brewer's SparrowPasserellidae-35%
Pine GrosbeakFringillidae-34%
Burrowing OwlStrigidae-31%
Black-billed MagpieCorvidae-31%
American KestrelFalconidae-30%
Loggerhead ShrikeLaniidae-27%
Northern MockingbirdMimidae-26%
Belted KingfisherAlcedinidae-21%
Song SparrowPasserellidae-21%
Great Horned OwlStrigidae-20%
Yellow-breasted ChatIcteriidae-20%
Pine SiskinFringillidae-18%
American DipperCinclidae-12%
Rufous HummingbirdTrochilidae-11%
Northern HarrierAccipitridae-11%
Mourning DoveColumbidae-9%
Broad-tailed HummingbirdTrochilidae-3%
Short-eared OwlStrigidae-1%
Yellow-headed BlackbirdIcteridae-1%
Baltimore OrioleIcteridae+2%
Peregrine FalconFalconidae+7%
Golden EagleAccipitridae+12%
Chipping SparrowPasserellidae+12%
Sharp-tailed GrousePhasianidae+13%
Brown ThrasherMimidae+13%
Clark's NutcrackerCorvidae+23%
Calliope HummingbirdTrochilidae+26%
Gray CatbirdMimidae+33%
American GoldfinchFringillidae+47%
Bullock's OrioleIcteridae+47%
House SparrowPasseridae+52%
Cassin's FinchFringillidae+57%
Chestnut-collared LongspurCalcariidae+66%
Red-winged BlackbirdIcteridae+67%
Gray PartridgePhasianidae+70%
White-crowned SparrowPasserellidae+70%
Turkey VultureCathartidae+105%
Lazuli BuntingCardinalidae+115%
Clay-colored SparrowPasserellidae+116%
Wild TurkeyPhasianidae+135%
European StarlingSturnidae+142%
Ruffed GrousePhasianidae+153%
Common GrackleIcteridae+178%
OspreyPandionidae+193%
Red CrossbillFringillidae+207%
Fox SparrowPasserellidae+232%
Thick-billed LongspurCalcariidae+232%
Spotted TowheePasserellidae+233%
Western TanagerCardinalidae+235%
Ferruginous HawkAccipitridae+238%
Brown-headed CowbirdIcteridae+251%
Rock PigeonColumbidae+272%
Red-tailed HawkAccipitridae+306%
Field SparrowPasserellidae+326%
Common RavenCorvidae+374%
Black-headed GrosbeakCardinalidae+390%
House FinchFringillidae+486%
Cedar WaxwingBombycillidae+560%
Swainson's HawkAccipitridae+644%
Orchard OrioleIcteridae+727%
Bald EagleAccipitridae+752%
Lincoln's SparrowPasserellidae+757%
Eurasian Collared-DoveColumbidae+913%

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