BirdAnalyst
Species · New Mexico · BBS 2025 Release · 1966–2024

House Sparrow Population Trend in New Mexico

All statesGeneralists

House Sparrow in New Mexico has held roughly steady: down 8% on the route-weighted index since 1970.

-8%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 →
76Routes 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 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 25% by 2029 — from 8.8 in 2024 to a central estimate of 6.6 (95% range 0.00–14). A 5-year backtest shows a typical error of ±33.3%, with 100% of held-out values landing inside the 95% band.

-25%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 →
6.6Projected 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 →
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 →
±33.3%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 25% by 2029 — from 8.8 in 2024 to a central estimate of 6.6 (95% range 0.00–14). A 5-year backtest shows a typical error of ±33.3%, with 100% 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 →
20257.10.1914
20267.00.0714
20276.80.0014
20286.70.0014
20296.60.0014

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 →
Maljamar8919771975
Clovis8320241993
Hobbs8220241994
Valencia6919971968
Tucumcari6419751975
La Plata6420131990
Deming5119751968
Laborcita 24420242022
Mesilla3120001992
Columbus3020241992
Aztec2919891988
San Antonio2619771974
Crownpoint2119961968
La Plata 22020162014
Bitter Lake2020231994
La Cienega1920221968
Farmington1619871975
Laborcita1620191992
Pep1520241992
Floyd1420241968
Jornada1420241974
Roswell1220231972
Rodeo1220241974
Shiprock1220232006
Ojo Sarco1020241968

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 2026-05-22.