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

Ruby-crowned Kinglet In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauForest birds

Ruby-crowned Kinglet in Southern Rockies / Colorado Plateau has surged: up 17× on the route-weighted index since 1970.

17×Since 1970
137Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Ruby-crowned Kinglet has surged in Southern Rockies / Colorado Plateau: up 17× on the route-weighted index since 1970.

Forecast

If the recent trend holds, Ruby-crowned Kinglet in Southern Rockies / Colorado Plateau is projected to rise about 85% by 2029 — from 5.8 in 2024 to a central estimate of 11 (95% range 7.9–13). A 5-year backtest shows a typical error of ±50.2%, with 20% of held-out values landing inside the 95% band.

+85%Change by 2029
11Projected 2029 index
7.9–1395% range
±50.2%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
202510.07.213
2026107.413
2027107.613
2028117.713
2029117.913

Routes In Southern Rockies / Colorado Plateau

Routes recording Ruby-crowned Kinglet in Southern Rockies / Colorado Plateau.
Buffalo ParkCOLORADO952023
Grizzly RdgeUTAH752024
Mount EvansCOLORADO442024
Dolores RivCOLORADO402024
Red Spur Mtn.UTAH352023
Fox ParkWYOMING342024
Red CliffCOLORADO322024
Lost LakeCOLORADO292024
ThomasvilleCOLORADO292018
Haycamp MesaCOLORADO292024
Dixie NfUTAH272024
TincupCOLORADO262024
Dry ParkARIZONA252024
South ForkCOLORADO252024
Ryan ParkWYOMING252023
TsaileARIZONA242023
Deadman Rd.COLORADO242024
Fox CreekCOLORADO242024
Rollins PassCOLORADO232022
FlattopsCOLORADO222019
Guanella PasCOLORADO222024
Stillwater PassCOLORADO212009
La SalUTAH212000
Lake CityCOLORADO182003
Lake City 2COLORADO182024

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