BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Chipping Sparrow In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Chipping Sparrow in Southern Rockies / Colorado Plateau has increased: up 46% on the route-weighted index since 1970.

+46%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 →
220Routes 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 →
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 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 Chipping Sparrow in Southern Rockies / Colorado Plateau. See the full index history below.

Chipping Sparrow In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Chipping Sparrow in Southern Rockies / Colorado Plateau is projected to rise about 14% by 2029 — from 6.7 in 2024 to a central estimate of 7.6 (95% range 4.9–10). A 5-year backtest shows a typical error of ±36.3%, with 80% of held-out values landing inside the 95% band.

+14%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 →
7.6Projected 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 →
4.9–1095% 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 →
±36.3%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, Chipping Sparrow in Southern Rockies / Colorado Plateau is projected to rise about 14% by 2029 — from 6.7 in 2024 to a central estimate of 7.6 (95% range 4.9–10). A 5-year backtest shows a typical error of ±36.3%, 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 →
20257.54.810
20267.54.910
20277.64.910
20287.64.910
20297.64.910

Routes In Southern Rockies / Colorado Plateau

Routes recording Chipping Sparrow in Southern Rockies / Colorado 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 →
Grizzly RdgeUTAH422024
Mcphee Res.COLORADO402024
TsaileARIZONA392023
Dixie NfUTAH352024
PecosNEW-MEXICO342017
Bryce CanyonUTAH302024
Dry ParkARIZONA282024
McgaffeyNEW-MEXICO282023
AlamosaCOLORADO271992
Mt. TaylorNEW-MEXICO272012
Lost Cr. ResUTAH262018
Angel FireNEW-MEXICO222002
Navajo LakeUTAH222024
Moquith MtnUTAH212024
RichfieldUTAH212019
Buffalo ParkCOLORADO202023
LudlowCOLORADO202016
Mt. Taylor 2NEW-MEXICO202024
Stinking Lk.NEW-MEXICO191999
Angel Fire 2NEW-MEXICO192024
SawmillARIZONA182014
La Sal 3UTAH172024
ZeniffARIZONA161984
De BequeCOLORADO162024
PinonCOLORADO162024

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.