BirdAnalyst
BBS Route · Louisiana · BCR 26

Transylvania Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 79 species recorded across 21 survey years, still active.

79Species 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 →
21Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2025Span
5Observers

Bird Species Found on Louisiana Transylvania

Top 40 of 79 species by most recent count. Each links to its species trend.

Species recorded on the Transylvania 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 BlackbirdIcteridae2472025-49%2000
Mourning DoveColumbidae622025-23%2000
Indigo BuntingCardinalidae502025+149%2000
Cliff SwallowHirundinidae45202523×2007
Northern CardinalCardinalidae442025-46%2000
KilldeerCharadriidae422025-26%2000
DickcisselCardinalidae342025-6%2000
Brown-headed CowbirdIcteridae302025+176%2000
Carolina WrenTroglodytidae29202519×2000
Western Cattle-EgretArdeidae212025+35%2000
American CrowCorvidae212025-17%2000
Eastern BluebirdTurdidae212025+200%2000
Blue GrosbeakCardinalidae202025+650%2003
Purple MartinHirundinidae202025-57%2000
Northern MockingbirdMimidae192025-48%2000
Red-bellied WoodpeckerPicidae172025+80%2000
Yellow-billed CuckooCuculidae152025+26%2000
Yellow-breasted ChatIcteriidae152025+740%2000
Barn SwallowHirundinidae132025-2%2000
Great Crested FlycatcherTyrannidae132025+633%2010
Painted BuntingCardinalidae112025+580%2002
Northern Rough-winged SwallowHirundinidae102022+900%2008
European StarlingSturnidae92025-69%2000
Eastern TowheePasserellidae92025+157%2000
Blue JayCorvidae72025-35%2000
Little Blue HeronArdeidae72025-66%2001
Great EgretArdeidae72025+88%2002
Eastern Wood-PeweeTyrannidae62025+167%2001
Common GrackleIcteridae62025-67%2000
Common YellowthroatParulidae62025+220%2000
Tufted TitmouseParidae62025+667%2006
White-eyed VireoVireonidae52025+225%2001
Downy WoodpeckerPicidae42022-14%2000
Horned LarkAlaudidae42022+30%2000
Lark SparrowPasserellidae42025+150%2002
Brown ThrasherMimidae42025+11%2000
Red-eyed VireoVireonidae42025+200%2010
Loggerhead ShrikeLaniidae32025-66%2000
Wood DuckAnatidae32017+17%2011
Snowy EgretArdeidae32025+50%2003

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