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

Indigo Bunting In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Indigo Bunting in Southern Rockies / Colorado Plateau has fallen sharply: down 61% on the route-weighted index since 1973.

-61%Since 1973TrendPercent 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 →
28Routes 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 →
34YearsYears 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 Indigo Bunting in Southern Rockies / Colorado Plateau. See the full index history below.

Indigo Bunting In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Indigo Bunting in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±67.2%, with 80% of held-out values landing inside the 95% band.

n/aChange 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 →
0.00Projected 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 →
0.00–0.0395% 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 →
±67.2%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, Indigo Bunting in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±67.2%, with 80% of held-out values landing inside the 95% band.19702029
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 →
20250.010.000.04
20260.000.000.03
20270.000.000.03
20280.000.000.03
20290.000.000.03

Routes In Southern Rockies / Colorado Plateau

Routes recording Indigo Bunting 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 →
Cheesman LkCOLORADO22006
ValenciaNEW-MEXICO21992
Navajo LakeUTAH22024
HarmonyCOLORADO12002
Douglas PassCOLORADO11988
DoloresCOLORADO11972
Wilson CreekCOLORADO12024
FruitaCOLORADO12004
Blackhead PkCOLORADO11999
Groundhog RsCOLORADO12014
WalsenburgCOLORADO12007
Rifle FallsCOLORADO12015
CebollaNEW-MEXICO12009
Ojo SarcoNEW-MEXICO11983
PecosNEW-MEXICO11979
ClaunchNEW-MEXICO11994
CounselorNEW-MEXICO12001
Angel FireNEW-MEXICO12002
GallinasNEW-MEXICO12014
Angel Fire 2NEW-MEXICO12018
CapulinNEW-MEXICO11993
BoulderUTAH12017
Main CanyonUTAH12015
Cane Spr DesUTAH12011
HatchUTAH12023

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