BirdAnalyst
BBS Route · Louisiana · BCR 27

Bickham Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 39 survey years, still active.

99Species 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 →
39Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2025Span
3Observers

Bird Species Found on Louisiana Bickham

Top 40 of 99 species by most recent count. Each links to its species trend.

Species recorded on the Bickham 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 CardinalCardinalidae862025+23%1985
American CrowCorvidae752025+25%1985
Carolina WrenTroglodytidae582025+463%1985
Northern MockingbirdMimidae572025-24%1985
Common GrackleIcteridae532025-45%1985
Mourning DoveColumbidae402025+174%1985
Blue JayCorvidae402025+43%1985
European StarlingSturnidae292025-24%1985
Eastern MeadowlarkIcteridae272025-6%1985
Red-bellied WoodpeckerPicidae252025+54%1986
White-eyed VireoVireonidae202025+152%1986
Indigo BuntingCardinalidae172025+200%1985
Red-winged BlackbirdIcteridae162025+131%1985
Barn SwallowHirundinidae162025+100%1986
Tufted TitmouseParidae162025+3%1986
Northern BobwhiteOdontophoridae152025-54%1985
Eastern TowheePasserellidae142025-11%1985
Purple MartinHirundinidae142025-4%1985
Carolina ChickadeeParidae132025+37%1985
Downy WoodpeckerPicidae132025+121%1986
Great Crested FlycatcherTyrannidae122025+167%1986
Brown-headed CowbirdIcteridae102025+15%1985
Brown ThrasherMimidae102025-51%1985
Summer TanagerCardinalidae102025-12%1986
Yellow-breasted ChatIcteriidae102025+31%1986
Blue GrosbeakCardinalidae92025-42%1986
Fish CrowCorvidae82025-28%1985
Yellow-billed CuckooCuculidae82025-32%1986
Wood ThrushTurdidae82025+133%1986
Eastern BluebirdTurdidae82025+80%1987
Cliff SwallowHirundinidae82025+70%2013
Black VultureCathartidae72025-76%1987
Northern Rough-winged SwallowHirundinidae62025+20%1989
Mississippi KiteAccipitridae62025+150%2007
House SparrowPasseridae52025-81%1985
Pileated WoodpeckerPicidae52025+86%1986
Gray CatbirdMimidae52025+267%2008
Western Cattle-EgretArdeidae42025-5%1985
Orchard OrioleIcteridae42025-75%1985
Wood DuckAnatidae42022+40%1990

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