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

Common Poorwill Population Trend in Oklahoma

All statesAerial insectivores

Common Poorwill in Oklahoma has surged: up 81% on the route-weighted index since 1981.

+81%Since 1981TrendPercent 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 →
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 Common Poorwill 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Common Poorwill has surged in Oklahoma: up 81% on the route-weighted index since 1981.

Common Poorwill Survey Routes in Oklahoma

Routes recording Common Poorwill 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 →
Erick219841980
Sickles220162000
Woodward120192012
Clear Lake120161993
Grimes119871979
Hollis120191993

Common Poorwill Population Trend in Other States

arizonacaliforniacoloradoidahokansasmontananebraskanevadanew-mexicooregonsouth-dakotatexasutahwashingtonwyoming

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