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

Northern House Wren Population Trend in Wyoming

All statesForest birds

Northern House Wren in Wyoming has surged: up 308% on the route-weighted index since 1970.

+308%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 →
92Routes 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 →
56YearsYears 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 308% 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 37% by 2029 — from 2.9 in 2024 to a central estimate of 3.9 (95% range 2.7–5.1). A 5-year backtest shows a typical error of ±32.9%, with 80% of held-out values landing inside the 95% band.

+37%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 →
3.9Projected 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 →
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 →
±32.9%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 37% by 2029 — from 2.9 in 2024 to a central estimate of 3.9 (95% range 2.7–5.1). A 5-year backtest shows a typical error of ±32.9%, with 80% 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 →
20253.82.65.0
20263.82.65.0
20273.92.75.1
20283.92.75.1
20293.92.75.1

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
Dayton1820241980
Meeteetse1720241992
Wyarno1620241974
Wilson1520241979
Savery1319951989
Sybille Cyn1220241989
Savery 21220242007
Seedskadee 21120242024
Anchor1020182002
Moskee 31020242022
Riverside920241968
Arvada920241982
Cody820241983
Dubois820241968
Crazy Woman820241979
Fontenelle720241982
Ethete720241992
Moose620241976
Fletcher Pk620241981
Mtn View620241980
Seedskadee620231986
Otto520241975
Crowheart520211987

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 2026-05-22.