BirdAnalyst
BBS Route · Louisiana · BCR 26

Atchafalaya Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 32 survey years, still active.

91Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1989–2024Span
3Observers

Bird Species Found on Louisiana Atchafalaya

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Atchafalaya route.
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 →TrendPercent 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 →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Carolina WrenTroglodytidae1212024-14%1991
Northern CardinalCardinalidae922024+3%1991
White-eyed VireoVireonidae752024-34%1991
Red-bellied WoodpeckerPicidae672024+100%1991
Prothonotary WarblerParulidae522024-27%1991
Carolina ChickadeeParidae412024+11%1991
Tufted TitmouseParidae362024+52%1991
Painted BuntingCardinalidae342024+7%1991
Red-eyed VireoVireonidae292024-27%1991
Brown-headed CowbirdIcteridae212024-29%1991
Indigo BuntingCardinalidae212024-66%1991
Little Blue HeronArdeidae172024-89%1991
Acadian FlycatcherTyrannidae162024-20%1991
Yellow-breasted ChatIcteriidae152024-84%1991
Yellow-crowned Night HeronArdeidae142024-85%1991
Yellow-billed CuckooCuculidae132024+6%1991
Pileated WoodpeckerPicidae122024+50%1991
American CrowCorvidae122024-32%1991
Summer TanagerCardinalidae122024+52%1991
Blue-gray GnatcatcherPolioptilidae122024-25%1991
Great Crested FlycatcherTyrannidae92024+233%1991
Downy WoodpeckerPicidae82024+27%1991
Wood StorkCiconiidae82003n/an/a
Chimney SwiftApodidae72024-52%1991
Common GrackleIcteridae72024-83%1991
Great Blue HeronArdeidae62019-82%1991
Common YellowthroatParulidae62024-76%1991
Great EgretArdeidae52024-91%1991
Snowy EgretArdeidae52019-78%1991
Western Cattle-EgretArdeidae52024-92%1991
Turkey VultureCathartidae52024+100%1991
Kentucky WarblerParulidae52023-82%1991
American RedstartParulidae52024-81%1991
White-faced IbisThreskiornithidae52015+400%2009
Red-shouldered HawkAccipitridae42024-35%1991
Barred OwlStrigidae42024-47%1991
Red-winged BlackbirdIcteridae42024+17%1991
Double-crested CormorantPhalacrocoracidae41996n/an/a
Tricolored HeronArdeidae32019-78%1991
Blue JayCorvidae32024-53%1991

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.