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

Sora Population Trend in Alaska

All statesWetland birds

Sora in Alaska has declined: down 27% on the route-weighted index since 1993.

-27%Since 1993TrendPercent 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 →
13YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Sora Trends in AlaskaNotable 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 Sora in Alaska. See the full index history below.

Sora Survey Routes in Alaska

Routes recording Sora in Alaska.
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 →
Northway219961991
Kenny Lake220241991
Birch Lake120122012
Livengood120172017
Slana120242024
Hatcher Pass120172017
Haines120241995

Sora Population Trend in Other States

arizonacaliforniacoloradoidahoillinoisindianaiowakansasmainemassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-dakotaohiooregonpennsylvaniasouth-dakotautahvermontwashingtonwisconsinwyoming

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