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

Hermit Thrush In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauForest birds

Hermit Thrush in Southern Rockies / Colorado Plateau has surged: up 300% on the route-weighted index since 1970.

+300%Since 1970
141Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Hermit Thrush has surged in Southern Rockies / Colorado Plateau: up 300% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Hermit Thrush in Southern Rockies / Colorado Plateau is projected to rise about 28% by 2029 — from 6.4 in 2024 to a central estimate of 8.2 (95% range 5.9–10). A 5-year backtest shows a typical error of ±35.8%, with 60% of held-out values landing inside the 95% band.

+28%Change by 2029
8.2Projected 2029 index
5.9–1095% range
±35.8%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
20257.85.510
20267.95.610
20278.05.710
20288.15.810
20298.25.910

Routes In Southern Rockies / Colorado Plateau

Routes recording Hermit Thrush in Southern Rockies / Colorado Plateau.
Buffalo ParkCOLORADO772023
Grizzly RdgeUTAH492024
Navajo LakeUTAH482024
Fox ParkWYOMING482024
Pinos CreekCOLORADO441990
TsaileARIZONA342023
Mount EvansCOLORADO342024
South ForkCOLORADO332024
Haycamp MesaCOLORADO322024
Dry ParkARIZONA292024
Mcphee Res.COLORADO272024
Angel FireNEW-MEXICO262002
Baxter PassCOLORADO252024
Cochetopa PassCOLORADO252024
Fish Lake NfUTAH252024
PinonCOLORADO242024
La SalUTAH242000
Heber Mtn.UTAH242024
La Sal 3UTAH232024
Red Spur Mtn.UTAH232023
Lake CityCOLORADO222003
Rollins PassCOLORADO222022
Wasatch NfUTAH212024
Deadman Rd.COLORADO202024
La Sal 2UTAH202006

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