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Species · BCR 20 · BBS 2026 Release · 1966–2025

Field Sparrow In Edwards Plateau

All regionsEdwards PlateauForest birds

Field Sparrow in Edwards Plateau has increased: up 34% on the route-weighted index since 1969.

+34%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 →
19Routes 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 Field Sparrow in Edwards Plateau. See the full index history below.

Field Sparrow In Edwards Plateau Population Forecast

If the recent trend holds, Field Sparrow in Edwards Plateau is projected to stay roughly flat through 2030, near 12 (95% range 6.3–17). A 5-year backtest shows a typical error of ±22.7%, with 100% of held-out values landing inside the 95% band.

-3%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 →
12Projected 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 →
6.3–1795% 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 →
±22.7%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, Field Sparrow in Edwards Plateau is projected to stay roughly flat through 2030, near 12 (95% range 6.3–17). A 5-year backtest shows a typical error of ±22.7%, 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 →
2026126.217
2027126.317
2028126.317
2029126.317
2030126.317

Routes In Edwards Plateau

Routes recording Field Sparrow in Edwards Plateau.
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 →
UtopiaTEXAS442025
BoerneTEXAS412025
Dripping SpgTEXAS322025
FitzhughTEXAS141983
RockspringTEXAS122025
San SabaTEXAS112025
Indian MtnTEXAS112025
Prairie Mtn.TEXAS112017
AdamsvilleTEXAS102025
LeakeyTEXAS102025
Allen CreekTEXAS72025
MontellTEXAS62025
KempnerTEXAS52025
HarperTEXAS32025
Valley SpgsTEXAS22025
Pidcoke 2TEXAS22024
GeorgetownTEXAS11979
PidcokeTEXAS12016
LeanderTEXAS12002

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