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Species · BCR 25 · BBS 2025 Release · 1966–2024

Tricolored Heron In West Gulf Coastal Plain / Ouachitas

All regionsWest Gulf Coastal Plain / OuachitasWetland birds

Tricolored Heron in West Gulf Coastal Plain / Ouachitas has declined: down 32% on the route-weighted index since 1994.

-32%Since 1994TrendPercent 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 →
12Routes 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 Tricolored Heron in West Gulf Coastal Plain / Ouachitas. See the full index history below.

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Tricolored Heron in West Gulf Coastal Plain / Ouachitas.
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 →
De QuincyLOUISIANA32010
Derry 2LOUISIANA22006
EvelynLOUISIANA22009
Town BluffTEXAS22009
StampsARKANSAS12015
EastonLOUISIANA11982
Mount UnionLOUISIANA12008
Burr FerryLOUISIANA12016
NatchezLOUISIANA12013
LivingstonTEXAS11981
CrossroadsTEXAS12013
AthensTEXAS12002

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