BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Lazuli Bunting In Northern Rockies

All regionsNorthern RockiesGeneralists

Lazuli Bunting in Northern Rockies has risen sharply: up 60% on the route-weighted index since 1970.

+60%Since 1970
175Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Lazuli Bunting has risen sharply in Northern Rockies: up 60% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Lazuli Bunting in Northern Rockies is projected to rise about 17% by 2029 — from 2.4 in 2024 to a central estimate of 2.8 (95% range 1.8–3.7). A 5-year backtest shows a typical error of ±13.1%, with 100% of held-out values landing inside the 95% band.

+17%Change by 2029
2.8Projected 2029 index
1.8–3.795% range
±13.1%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
20252.71.73.6
20262.71.83.7
20272.71.83.7
20282.71.83.7
20292.81.83.7

Routes In Northern Rockies

Routes recording Lazuli Bunting in Northern Rockies.
Salmon RiverIDAHO452021
NewbridgeOREGON432024
BridgeportOREGON342022
Buckskin MtnWYOMING332021
Hells CanyonOREGON292022
CloverlandWASHINGTON262024
TwickenhamOREGON202024
NezperceIDAHO172012
ClancyMONTANA152023
FeathervilleIDAHO142024
KellerWASHINGTON142007
LaurierWASHINGTON142022
MonumentOREGON132024
Crane CreekIDAHO122019
Eagle CreekOREGON112022
Threemile WaMONTANA102024
LogdellOREGON102024
Pryor Mtn.MONTANA92024
Malheur Res.OREGON92023
ChallisIDAHO82024
SulaMONTANA82024
Wolf CreekMONTANA82022
Hash RockOREGON82024
ChewelahWASHINGTON82021
CoolinIDAHO72024

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