BirdAnalyst
BBS Route · Alabama · BCR 27

Billingsley Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 53 survey years, still active.

107Species 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 →
53Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
10Observers

Bird Species Found on Alabama Billingsley

Top 40 of 107 species by most recent count. Each links to its species trend.

Species recorded on the Billingsley 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
Indigo BuntingCardinalidae462025+36%1968
Blue JayCorvidae402025-18%1968
Cliff SwallowHirundinidae402022-29%2005
Northern CardinalCardinalidae332025+10%1968
Northern MockingbirdMimidae332025-44%1968
American CrowCorvidae322025+143%1968
Mourning DoveColumbidae212025-13%1968
Orchard OrioleIcteridae202025-42%1968
American RobinTurdidae202025+575%1969
Carolina WrenTroglodytidae182025+69%1968
Eastern KingbirdTyrannidae172025+6%1968
White-eyed VireoVireonidae162025+36%1968
Tufted TitmouseParidae162025+26%1968
European StarlingSturnidae152025+52%1968
Brown-headed CowbirdIcteridae152025+11%1968
Yellow-breasted ChatIcteriidae142025-16%1968
Hooded WarblerParulidae132025+475%1970
House FinchFringillidae132025+833%1997
Northern Rough-winged SwallowHirundinidae122022-13%1968
Pine WarblerParulidae112025+550%1970
House SparrowPasseridae112025-76%1968
Common GrackleIcteridae102025-71%1968
Eastern TowheePasserellidae92025-28%1968
Blue-gray GnatcatcherPolioptilidae92025+500%1968
Red-eyed VireoVireonidae82025+233%1968
Red-bellied WoodpeckerPicidae72025+0%1968
Eastern MeadowlarkIcteridae72025-55%1968
Wood ThrushTurdidae72025+30%1968
Common YellowthroatParulidae72025+40%1969
Fish CrowCorvidae72025+67%1986
Great Crested FlycatcherTyrannidae62025-7%1968
Blue GrosbeakCardinalidae62025-36%1968
Carolina ChickadeeParidae62025+46%1968
Eastern PhoebeTyrannidae62025+425%1969
Turkey VultureCathartidae62025-61%1996
Purple MartinHirundinidae52025-84%1968
Brown ThrasherMimidae52025-32%1968
Northern ParulaParulidae52025+433%1981
Black VultureCathartidae52025-25%1997
Eurasian Collared-DoveColumbidae52025+39%2007

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