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

Black-billed Cuckoo Population Trend in Oklahoma

All statesGeneralists

Black-billed Cuckoo in Oklahoma has held roughly steady: down 1% on the route-weighted index since 1969.

-1%Since 1969TrendPercent 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 →
9Routes 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 →
16YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Black-billed Cuckoo 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 Black-billed Cuckoo in Oklahoma. See the full index history below.

Black-billed Cuckoo Survey Routes in Oklahoma

Routes recording Black-billed Cuckoo 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 →
Collinsville220071967
Jet120131993
Woodward119931993
Reed119971997
Baron119841984
Peoria119691967
Wainwright120092004
Skiatook119831983
Lookout119981987

Black-billed Cuckoo Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiopennsylvaniarhode-islandsouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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