BirdAnalyst
BBS Route · Louisiana · BCR 25

Clay Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 41 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
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 CardinalCardinalidae512025+35%1971
White-eyed VireoVireonidae422025+113%1971
Yellow-breasted ChatIcteriidae422025+40%1971
American CrowCorvidae382025+269%1971
Mourning DoveColumbidae352025+161%1971
Purple MartinHirundinidae342025+10%1971
Carolina WrenTroglodytidae272025+187%1971
Northern MockingbirdMimidae232025+11%1971
Blue JayCorvidae192025+34%1971
Red-bellied WoodpeckerPicidae172025+86%1971
Tufted TitmouseParidae162025+136%1971
Red-eyed VireoVireonidae142025+283%1971
Turkey VultureCathartidae132025+460%1971
Yellow-billed CuckooCuculidae132025+5%1971
Western Cattle-EgretArdeidae122025+163%1985
Rock PigeonColumbidae111970n/an/a
Indigo BuntingCardinalidae82025+75%1971
Eastern BluebirdTurdidae82025+340%1971
Summer TanagerCardinalidae52025-36%1971
Red-headed WoodpeckerPicidae52025-58%1972
Blue GrosbeakCardinalidae52025+200%1973
Black VultureCathartidae42025-71%1971
Wood ThrushTurdidae42025-55%1971
Brown-headed NuthatchSittidae42024+17%1972
Eastern TowheePasserellidae42025+43%1990
Downy WoodpeckerPicidae32024+150%1983
Common GrackleIcteridae32023-70%1971
Pine WarblerParulidae32025+84%1971
Prairie WarblerParulidae32025+21%1971
DickcisselCardinalidae32013+200%1970
Black-and-white WarblerParulidae32023-50%1985
Eurasian Collared-DoveColumbidae32025+0%2011
Swainson's WarblerParulidae32024-25%2021
Barred OwlStrigidae22025+50%1972
Eastern Wood-PeweeTyrannidae22025-46%1971
Baltimore OrioleIcteridae22012+33%1971
Bachman's SparrowPasserellidae21972+0%1970
Yellow-throated VireoVireonidae22025+125%1983
Kentucky WarblerParulidae22024-78%1983
Hooded WarblerParulidae22025+195%1971

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.