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

Lark Bunting In Northern Rockies

All regionsNorthern RockiesGrassland birds

Lark Bunting in Northern Rockies has declined: down 34% on the route-weighted index since 1970.

-34%Since 1970
83Routes In Region
56Years

Notable Signals

No notable trend signals for Lark Bunting in Northern Rockies. See the full index history below.

Forecast

If the recent trend holds, Lark Bunting in Northern Rockies is projected to fall about 56% by 2029 — from 7.6 in 2024 to a central estimate of 3.3 (95% range 0.00–10). A 5-year backtest shows a typical error of ±39.1%, with 100% of held-out values landing inside the 95% band.

-56%Change by 2029
3.3Projected 2029 index
0.00–1095% range
±39.1%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
20253.50.0010
20263.50.0010
20273.40.0010
20283.40.0010
20293.30.0010

Routes In Northern Rockies

Routes recording Lark Bunting in Northern Rockies.
Gas Hills 2WYOMING2462024
CrowheartWYOMING2282004
ArmintoWYOMING2082024
Sand DrawWYOMING1412024
WorlandWYOMING982024
Muddy CreekMONTANA782015
PathfinderWYOMING752024
TensleepWYOMING732024
FrannieWYOMING492024
EtheteWYOMING482024
GeboWYOMING462021
LysiteWYOMING352024
BasinWYOMING272024
AnchorWYOMING211993
CodyWYOMING182019
NowoodWYOMING172024
FarsonWYOMING172018
DuboisWYOMING152018
ShirleyWYOMING152024
Gas HillsWYOMING142012
OttoWYOMING122024
Patrick DrawWYOMING121980
MoranWYOMING92004
LovellWYOMING82024
SweetwaterWYOMING82024

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