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

Northern House Wren Population Trend in Montana

All statesForest birds

Northern House Wren in Montana has surged: up 106% on the route-weighted index since 1970.

+106%Since 1970
105Routes In State
56Years

Notable Northern House Wren Trends in Montana

long arc increasecomputed index

Northern House Wren has surged in Montana: up 106% on the route-weighted index since 1970.

Northern House Wren Population Forecast in Montana

If the recent trend holds, Northern House Wren in Montana is projected to rise about 14% by 2029 — from 5.0 in 2024 to a central estimate of 5.7 (95% range 4.0–7.4). A 5-year backtest shows a typical error of ±11.8%, with 80% of held-out values landing inside the 95% band.

+14%Change by 2029
5.7Projected 2029 index
4.0–7.495% range
±11.8%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
20255.53.97.2
20265.63.97.3
20275.64.07.3
20285.74.07.4
20295.74.07.4

Northern House Wren Survey Routes in Montana

Routes recording Northern House Wren in Montana.
Reed Point5220241977
Clyde Park3220242018
Brandenberg2720191968
Highwood2120241968
Custer2120222019
Savage2020211978
Church Hill1920242017
Laurel1820221969
St. Mary 21820242009
St Mary1520081972
Forsyth1520231980
Augusta1420241976
Freeman Creek1320162015
Muddy Creek1320152015
Fort Logan1320242018
Custer 21320242024
Glen1220241977
Maynard Coulee1220242017
Jordan1120241968
Kalispell1020241970
Two Dot1020241976
Heart Butte1020242015
Chinook1020242015
Pagil Gulch1020242015
Brunzell Slough1020242015

Northern House Wren Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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