BirdAnalyst
Species · Idaho · BBS 2025 Release · 1966–2024

Lark Bunting Population Trend in Idaho

All statesGrassland birds

Lark Bunting in Idaho has collapsed: down 96% on the route-weighted index since 1996.

-96%Since 1996TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
11Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
17YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Lark Bunting Trends in IdahoNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Lark Bunting has collapsed in Idaho: down 96% on the route-weighted index since 1996.

Lark Bunting Survey Routes in Idaho

Routes recording Lark Bunting in Idaho.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Blackft Res2120041998
Lost River620061996
Pasadena Val220001996
Daniels Res120042004
Preston120042004
Twin Buttes120052005
Kyle Canyon120192003
Circular Bu120151990
Tractor Flat120211996
Dubois120051996
Carey120121996

Lark Bunting Population Trend in Other States

arizonacaliforniacoloradoiowakansasminnesotamissourimontananebraskanew-mexiconorth-dakotaoklahomasouth-dakotatexasutahwyoming

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