BirdAnalyst
Species · New Mexico · BBS 2026 Release · 1966–2025

House Sparrow Population Trend in New Mexico

All statesGeneralists

House Sparrow in New Mexico has held roughly steady: down 4% on the route-weighted index since 1970.

-4%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 →
77Routes 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 House Sparrow Trends in New MexicoNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for House Sparrow in New Mexico. See the full index history below.

House Sparrow Population Forecast in New Mexico

If the recent trend holds, House Sparrow in New Mexico is projected to fall about 30% by 2030 — from 9.8 in 2025 to a central estimate of 6.9 (95% range 0.00–14). A 5-year backtest shows a typical error of ±39.4%, with 100% of held-out values landing inside the 95% band.

-30%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 →
6.9Projected 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 →
0.00–1495% 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 →
±39.4%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, House Sparrow in New Mexico is projected to fall about 30% by 2030 — from 9.8 in 2025 to a central estimate of 6.9 (95% range 0.00–14). A 5-year backtest shows a typical error of ±39.4%, with 100% 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 →
20267.30.4014
20277.20.2914
20287.10.1814
20297.00.0714
20306.90.0014

House Sparrow Survey Routes in New Mexico

Routes recording House Sparrow in New Mexico.
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 →
Hobbs10520251994
Maljamar8919771975
Clovis8320241993
Bitter Lake7320251994
Valencia6919971968
Tucumcari6419751975
La Plata6420131990
Deming5119751968
Jornada3820251974
Columbus3220251992
Mesilla3120001992
Laborcita 23020252022
Aztec2919891988
Torreon2620251975
San Antonio2619771974
Cooley Lake2220251968
Crownpoint2119961968
La Plata 22020162014
La Cienega1920221968
Farmington1619871975
Laborcita1620191992
Pep1520241992
Rodeo1420251974
Ojo Sarco1320251968
Shiprock1220232006

House Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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