BirdAnalyst
BBS Route · Louisiana · BCR 26

Delhi Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 63 species recorded across 8 survey years, still active.

63Species 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 →
8Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2011–2021Span
2Observers

Bird Species Found on Louisiana Delhi

Top 40 of 63 species by most recent count. Each links to its species trend.

Species recorded on the Delhi 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
Red-winged BlackbirdIcteridae1042021-22%2015
Northern CardinalCardinalidae502021-10%2015
Mourning DoveColumbidae462021-22%2015
Northern MockingbirdMimidae352021-16%2015
American CrowCorvidae162021+55%2015
Brown-headed CowbirdIcteridae152021+3%2015
Barn SwallowHirundinidae142021-19%2015
Tufted TitmouseParidae142021+129%2015
Western Cattle-EgretArdeidae132021-17%2015
Red-bellied WoodpeckerPicidae132021-3%2015
Blue JayCorvidae132021-24%2015
Common GrackleIcteridae92021-13%2015
Purple MartinHirundinidae92021+30%2015
Canada GooseAnatidae92019+29%2015
European StarlingSturnidae82021+43%2016
Yellow-breasted ChatIcteriidae82021+13%2015
Brown ThrasherMimidae82021+69%2016
Yellow-billed CuckooCuculidae62021+23%2015
Loggerhead ShrikeLaniidae62021+38%2015
House SparrowPasseridae52021-17%2015
White IbisThreskiornithidae52017n/an/a
Eastern BluebirdTurdidae42021+230%2015
Great EgretArdeidae32021+150%2015
Little Blue HeronArdeidae32021+19%2015
Turkey VultureCathartidae32021+0%2015
Pileated WoodpeckerPicidae32021+0%2017
Wood ThrushTurdidae32017+200%2015
Cliff SwallowHirundinidae32021-40%2018
Snowy EgretArdeidae22019+0%2016
Green HeronArdeidae22019+50%2013
Chimney SwiftApodidae22021-20%2013
Eastern MeadowlarkIcteridae22021-75%2015
White-eyed VireoVireonidae22019-38%2015
Eurasian Collared-DoveColumbidae22021+27%2015
Carolina WrenTroglodytidae22021-54%2016
Pied-billed GrebePodicipedidae22019+33%2016
Red-tailed HawkAccipitridae22019-40%2017
Horned LarkAlaudidae22018+100%2017
House FinchFringillidae22017n/an/a
Wood DuckAnatidae12015-50%2011

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