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

Lucy's Warbler In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauArid-land birds

Lucy's Warbler in Southern Rockies / Colorado Plateau has surged: up 664% on the route-weighted index since 1994.

+664%Since 1994
6Routes In Region
27Years

Notable Signals

long arc increasecomputed index

Lucy's Warbler has surged in Southern Rockies / Colorado Plateau: up 664% on the route-weighted index since 1994.

Forecast

If the recent trend holds, Lucy's Warbler in Southern Rockies / Colorado Plateau is projected to rise about 85% by 2029 — from 0.08 in 2024 to a central estimate of 0.14 (95% range 0.08–0.21). A 5-year backtest shows a typical error of ±33.9%, with 80% of held-out values landing inside the 95% band.

+85%Change by 2029
0.14Projected 2029 index
0.08–0.2195% range
±33.9%Backtest error
19922029
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
20250.130.060.19
20260.130.070.20
20270.140.070.20
20280.140.070.20
20290.140.080.21

Routes In Southern Rockies / Colorado Plateau

Routes recording Lucy's Warbler in Southern Rockies / Colorado Plateau.
Peach SpringARIZONA32024
AnethUTAH22024
Moquith MtnUTAH22003
HatchUTAH22024
MoabUTAH22024
ShivwitzUTAH12024

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