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

Mountain Chickadee In Southern Rockies / Colorado Plateau

Mountain Chickadee in Southern Rockies / Colorado Plateau has surged: up 96% on the route-weighted index since 1970.

+96%Since 1970
173Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Mountain Chickadee has surged in Southern Rockies / Colorado Plateau: up 96% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Mountain Chickadee in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 4.5 (95% range 2.8–6.2). A 5-year backtest shows a typical error of ±37.4%, with 80% of held-out values landing inside the 95% band.

+9%Change by 2029
4.5Projected 2029 index
2.86.295% range
±37.4%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
20254.42.76.0
20264.42.76.1
20274.42.86.1
20284.52.86.2
20294.52.86.2

Routes In Southern Rockies / Colorado Plateau

Routes recording Mountain Chickadee in Southern Rockies / Colorado Plateau.
Grizzly RdgeUTAH582024
Navajo LakeUTAH482024
Pinos CreekCOLORADO431990
Buffalo ParkCOLORADO422023
SawmillARIZONA362014
Deadman Rd.COLORADO342024
Dixie NfUTAH272024
Gold HillCOLORADO222012
La SalUTAH202000
Bryce CanyonUTAH192024
Mount EvansCOLORADO172024
TsaileARIZONA162023
Mt. Taylor 2NEW-MEXICO162024
HiteUTAH161992
Lost Cr. ResUTAH162018
Bluewater LakeNEW-MEXICO152021
Wasatch NfUTAH152024
Ryan ParkWYOMING142023
Cochetopa PassCOLORADO132024
Trail Ridge RoadCOLORADO132014
Lost LakeCOLORADO122024
Red CliffCOLORADO122024
Angel FireNEW-MEXICO122002
Dunckley PasCOLORADO112024
Mt. TaylorNEW-MEXICO112012

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