BirdAnalyst
BBS Route · Louisiana · BCR 25

Clay Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 40 survey years, still active.

100Species 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 →
40Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
8Observers

Bird Species Found on Louisiana Clay

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Clay 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
Northern CardinalCardinalidae762024+38%1971
Carolina WrenTroglodytidae602024+209%1971
White-eyed VireoVireonidae522024+90%1971
Tufted TitmouseParidae522024+171%1971
American CrowCorvidae462024+300%1971
Red-eyed VireoVireonidae422024+400%1971
Blue JayCorvidae402024+38%1971
Yellow-breasted ChatIcteriidae402024+22%1971
Northern MockingbirdMimidae352024+1%1971
Mourning DoveColumbidae332024+129%1971
Carolina ChickadeeParidae332024+57%1971
Indigo BuntingCardinalidae312024+143%1971
Pine WarblerParulidae292024+144%1971
Red-bellied WoodpeckerPicidae282024+89%1971
Hooded WarblerParulidae262024+274%1971
Blue-gray GnatcatcherPolioptilidae172024+269%1972
Orchard OrioleIcteridae162024+45%1971
Yellow-billed CuckooCuculidae152024-8%1971
Summer TanagerCardinalidae132024-25%1971
Wood ThrushTurdidae122024-45%1971
Rock PigeonColumbidae111970n/an/a
Turkey VultureCathartidae102024+380%1971
Eastern Wood-PeweeTyrannidae102024-19%1971
Brown-headed CowbirdIcteridae92024+17%1971
Purple MartinHirundinidae92024-27%1971
Yellow-throated VireoVireonidae92024+188%1983
Prairie WarblerParulidae92024+63%1971
Blue GrosbeakCardinalidae92024+317%1973
Eastern BluebirdTurdidae62024+300%1971
Great Crested FlycatcherTyrannidae62024+58%1972
Brown ThrasherMimidae52024+80%1972
Western Cattle-EgretArdeidae52023+238%1985
Chimney SwiftApodidae42024+20%1971
Eastern KingbirdTyrannidae42024-31%1971
Brown-headed NuthatchSittidae42024+17%1972
Downy WoodpeckerPicidae32024+150%1983
Common GrackleIcteridae32023-70%1971
DickcisselCardinalidae32013+200%1970
Barn SwallowHirundinidae32024+71%1983
Eastern TowheePasserellidae32023+100%1990

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