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Species · Alaska · BBS 2025 Release · 1966–2024

Bristle-thighed Curlew Population Trend in Alaska

All statesShorebirds

Bristle-thighed Curlew in Alaska has declined: down 41% on the route-weighted index since 1995.

-41%Since 1995TrendPercent 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 →
6Routes 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 Bristle-thighed Curlew 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 Bristle-thighed Curlew in Alaska. See the full index history below.

Bristle-thighed Curlew Survey Routes in Alaska

Routes recording Bristle-thighed Curlew 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 →
St. Mary'S320141993
Teller220082008
Kotzebue (Short)219941994
Cape Nome120042004
Red Dog119971997
Galbraith L.120012001

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