BirdAnalyst
Species · BCR 21 · BBS 2025 Release · 1966–2024

Pied-billed Grebe In Oaks and Prairies

All regionsOaks and PrairiesWetland birds

Pied-billed Grebe in Oaks and Prairies has declined: down 44% on the route-weighted index since 1969.

-44%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 →
13Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
17YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Pied-billed Grebe in Oaks and Prairies. See the full index history below.

Routes In Oaks and Prairies

Routes recording Pied-billed Grebe in Oaks and Prairies.
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 →
Mill CreekOKLAHOMA41968
CampbelltonTEXAS32017
LocoOKLAHOMA21976
HeyburnOKLAHOMA22008
HobsonTEXAS11994
Lone OakTEXAS11969
Massey LakeTEXAS11976
WeatherfordTEXAS11970
SeldenTEXAS12008
CottonwoodTEXAS12021
LydiaTEXAS12005
Blue RidgeTEXAS12002
YoakumTEXAS11994

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