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

Clark's Grebe Population Trend in Idaho

All statesWetland birds

Clark's Grebe in Idaho has declined: down 37% on the route-weighted index since 1990.

-37%Since 1990TrendPercent 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 →
7Routes 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 →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Clark's Grebe 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 →

No notable trend signals for Clark's Grebe in Idaho. See the full index history below.

Clark's Grebe Survey Routes in Idaho

Routes recording Clark's Grebe 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 →
Cedar Hill320052003
Daniels Res220001990
Preston119901989
Cabarton119881988
Ririe120112011
Featherville119901990
Pasadena Val120112001

Clark's Grebe Population Trend in Other States

arizonacaliforniacoloradomontananebraskanevadanorth-dakotaoregonsouth-dakotautahwyoming

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