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

Orange-crowned Warbler In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauForest birds

Orange-crowned Warbler in Southern Rockies / Colorado Plateau has surged: up 988% on the route-weighted index since 1972.

+988%Since 1972
115Routes In Region
52Years

Notable Signals

long arc increasecomputed index

Orange-crowned Warbler has surged in Southern Rockies / Colorado Plateau: up 988% on the route-weighted index since 1972.

Forecast

If the recent trend holds, Orange-crowned Warbler in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 1.3 (95% range 0.75–1.8). A 5-year backtest shows a typical error of ±54.9%, with 80% of held-out values landing inside the 95% band.

+7%Change by 2029
1.3Projected 2029 index
0.75–1.895% range
±54.9%Backtest error
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 index95% low95% high
20251.20.681.7
20261.20.701.8
20271.20.711.8
20281.30.731.8
20291.30.751.8

Routes In Southern Rockies / Colorado Plateau

Routes recording Orange-crowned Warbler in Southern Rockies / Colorado Plateau.
Owl Creek PassCOLORADO152024
Mcphee Res.COLORADO142024
Baxter PassCOLORADO132024
Haycamp MesaCOLORADO132024
AspenCOLORADO122024
Dolores RivCOLORADO102024
Douglas PassCOLORADO72024
Blackhead PkCOLORADO72021
YampaCOLORADO62023
Groundhog RsCOLORADO62024
NuclaCOLORADO62024
Black Sulphur CrCOLORADO62024
Yellowjacket PassCOLORADO52024
Mt. TaylorNEW-MEXICO52012
FayetteUTAH52018
Canyon RimsUTAH52018
DeltaCOLORADO42021
ColonaCOLORADO42012
UncompahgreCOLORADO42024
Lake City 2COLORADO42024
McgaffeyNEW-MEXICO42009
Mt. Taylor 2NEW-MEXICO42024
BeckUTAH41987
La Sal 3UTAH42024
Pagosa SpgsCOLORADO31982

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