BirdAnalyst
Species · BCR 35 · BBS 2026 Release · 1966–2025

House Finch In Chihuahuan Desert

All regionsChihuahuan DesertGeneralists

House Finch in Chihuahuan Desert has declined: down 29% on the route-weighted index since 1969.

-29%Since 1969TrendPercent 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 →
56Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Finch in Chihuahuan Desert. See the full index history below.

House Finch In Chihuahuan Desert Population Forecast

If the recent trend holds, House Finch in Chihuahuan Desert is projected to stay roughly flat through 2030, near 10 (95% range 2.6–18). A 5-year backtest shows a typical error of ±13.7%, with 100% of held-out values landing inside the 95% band.

-8%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 →
10Projected 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 →
2.6–1895% 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 →
±13.7%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 Finch in Chihuahuan Desert is projected to stay roughly flat through 2030, near 10 (95% range 2.6–18). A 5-year backtest shows a typical error of ±13.7%, with 100% of held-out values landing inside the 95% band.19672030
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 →
2026112.818
2027112.718
2028112.718
2029102.718
2030102.618

Routes In Chihuahuan Desert

Routes recording House Finch in Chihuahuan Desert.
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 →
MesillaNEW-MEXICO552000
Devils R CynTEXAS522025
GirvinTEXAS362025
Bear MtnTEXAS362025
DemingNEW-MEXICO321975
JornadaNEW-MEXICO312025
LaborcitaNEW-MEXICO282019
San AntonioNEW-MEXICO261977
PinonNEW-MEXICO232024
Laborcita 2NEW-MEXICO232025
Capitan Mtn.NEW-MEXICO202017
ShafterTEXAS191985
Delaware CrkTEXAS192015
Red RockNEW-MEXICO182025
Salt FlatTEXAS172015
Sierra BlancTEXAS172025
Quitman Canyon 2TEXAS172025
Quitman Cyn.TEXAS162009
GageNEW-MEXICO152025
Black GapTEXAS152025
Sunshine WllNEW-MEXICO142025
LongfellowTEXAS142025
Van HornTEXAS142025
RodeoNEW-MEXICO122025
PumpvilleTEXAS122025

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