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Species · Oklahoma · BBS 2025 Release · 1966–2024

Curve-billed Thrasher Population Trend in Oklahoma

All statesArid-land birds

Curve-billed Thrasher in Oklahoma has held roughly steady: down 5% on the route-weighted index since 2011.

-5%Since 2011TrendPercent 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 →
3Routes 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 Curve-billed Thrasher Trends in OklahomaNotable 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 Curve-billed Thrasher in Oklahoma. See the full index history below.

Curve-billed Thrasher Survey Routes in Oklahoma

Routes recording Curve-billed Thrasher in Oklahoma.
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 →
Felt320242010
Hooker120242016
Keyes120182005

Curve-billed Thrasher Population Trend in Other States

arizonacoloradokansasnevadanew-mexicotexas

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