BirdAnalyst
BBS Route · Alabama · BCR 27

Greensboro Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 51 survey years, still active.

101Species 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
5Observers

Bird Species Found on Alabama Greensboro

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Greensboro 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
White-eyed VireoVireonidae602024+121%1968
Northern CardinalCardinalidae442024-41%1968
Mourning DoveColumbidae342024+48%1968
Yellow-breasted ChatIcteriidae332024-19%1968
American CrowCorvidae322024+56%1968
Indigo BuntingCardinalidae312024+27%1968
Carolina WrenTroglodytidae292024+15%1968
Blue-gray GnatcatcherPolioptilidae282024+290%1968
Yellow-billed CuckooCuculidae232024-21%1968
Northern MockingbirdMimidae222024-47%1968
Eastern PhoebeTyrannidae22202417×1984
Red-eyed VireoVireonidae202024+53%1968
Red-bellied WoodpeckerPicidae192024+82%1968
Tufted TitmouseParidae182024-38%1968
Hooded WarblerParulidae172024+400%1968
Brown-headed CowbirdIcteridae162024+19%1968
Canada GooseAnatidae162024+73%1992
Wood ThrushTurdidae152024-46%1968
Blue JayCorvidae142024-71%1968
Purple MartinHirundinidae142024-44%1968
Northern Rough-winged SwallowHirundinidae132022+46%1968
Prairie WarblerParulidae132024+11%1968
Acadian FlycatcherTyrannidae122024+71%1968
Eastern TowheePasserellidae122024-84%1968
Downy WoodpeckerPicidae112024+171%1968
Northern ParulaParulidae112024+167%1968
Orchard OrioleIcteridae102024+10%1968
Summer TanagerCardinalidae102024-4%1968
Barn SwallowHirundinidae102024+69%1972
Pine WarblerParulidae92024+107%1969
Great Crested FlycatcherTyrannidae82024+144%1969
Eastern Wood-PeweeTyrannidae82024+8%1968
Blue GrosbeakCardinalidae82024+180%1968
Swainson's WarblerParulidae82024+733%1972
Eastern BluebirdTurdidae82024+375%1972
Cliff SwallowHirundinidae82024+56%2012
Yellow-throated WarblerParulidae72024+214%1968
Kentucky WarblerParulidae72024+56%1968
Chimney SwiftApodidae62024-73%1968
Yellow-throated VireoVireonidae62024+400%1969

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