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

Tricolored Heron In Oaks and Prairies

All regionsOaks and PrairiesWetland birds

Tricolored Heron in Oaks and Prairies has held roughly steady: up 1% on the route-weighted index since 1983.

+1%Since 1983TrendPercent 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 →
10Routes 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 →
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 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 Tricolored Heron in Oaks and Prairies. See the full index history below.

Routes In Oaks and Prairies

Routes recording Tricolored Heron 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 →
Arenosa CrkTEXAS22002
HobsonTEXAS11983
CampbelltonTEXAS11995
Lone OakTEXAS12009
Oak GroveTEXAS11974
Massey LakeTEXAS12024
HearneTEXAS12000
CayugaTEXAS12016
BriteTEXAS12019
BrucevilleTEXAS11998

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