BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

Northern House Wren Population Trend in Wyoming

All statesForest birds

Northern House Wren in Wyoming has surged: up 283% on the route-weighted index since 1970.

+283%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 →
94Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Northern House Wren 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Northern House Wren has surged in Wyoming: up 283% on the route-weighted index since 1970.

Northern House Wren Population Forecast in Wyoming

If the recent trend holds, Northern House Wren in Wyoming is projected to rise about 52% by 2030 — from 2.6 in 2025 to a central estimate of 3.9 (95% range 2.7–5.1). A 5-year backtest shows a typical error of ±43.1%, with 40% of held-out values landing inside the 95% band.

+52%Change by 2030TrendPercent 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 →
3.9Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
2.7–5.195% 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 →
±43.1%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, Northern House Wren in Wyoming is projected to rise about 52% by 2030 — from 2.6 in 2025 to a central estimate of 3.9 (95% range 2.7–5.1). A 5-year backtest shows a typical error of ±43.1%, with 40% of held-out values landing inside the 95% band.19682030
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 →
20263.72.54.9
20273.82.55.0
20283.82.65.0
20293.82.65.1
20303.92.75.1

Northern House Wren Survey Routes in Wyoming

Routes recording Northern House Wren 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 →
Green River3119841977
Seely2420001990
Dayton2320251980
Wyarno1820251974
Riverside1520251968
Meeteetse1520251992
Cody1320251983
Savery1319951989
Wilson1320251979
Moose1220251976
Seedskadee 21120242024
Anchor1020182002
Arvada920251982
Crazy Woman820241979
Sundance720251975
Dubois720251968
Fletcher Pk720251981
Sybille Cyn720251989
Moskee 3720252022
Ethete620251992
Boulder620251982
Mtn View620241980
Seely 2620252001
Seedskadee620231986
Buford520251974

Northern House Wren Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.