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

Orchard Oriole Population Trend in Montana

All statesGeneralists

Orchard Oriole in Montana has surged: up 727% on the route-weighted index since 1984.

+727%Since 1984
32Routes In State
32Years

Notable Orchard Oriole Trends in Montana

long arc increasecomputed index

Orchard Oriole has surged in Montana: up 727% on the route-weighted index since 1984.

Orchard Oriole Population Forecast in Montana

If the recent trend holds, Orchard Oriole in Montana is projected to fall about 68% by 2029 — from 0.67 in 2024 to a central estimate of 0.21 (95% range 0.00–0.42). A 5-year backtest shows a typical error of ±50.1%, with 40% of held-out values landing inside the 95% band.

-68%Change by 2029
0.21Projected 2029 index
0.00–0.4295% range
±50.1%Backtest error
19802029
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
20250.190.000.40
20260.200.000.41
20270.200.000.41
20280.210.000.42
20290.210.000.42

Orchard Oriole Survey Routes in Montana

Routes recording Orchard Oriole in Montana.
Brusett3820242011
Forsyth820232000
Jordan320242016
Webster320231990
Custer 2320242024
Miles City320242015
Oswego220232015
Laurel219891983
Powderville220241995
Ester Lake220242018
Saco220242019
Lindsay220232015
Custer220222022
Cleveland120102010
Malta120232012
Glasgow120242004
Redstone120162016
St Xavier 2120232022
Circle119931993
Savage119801980
Flatwillow119981998
Ingomar120082008
Locate120141983
Brandenberg120192008
Albion120231994

Orchard Oriole Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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