BirdAnalyst
BBS Route · Alabama · BCR 27

Castleberry Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 50 survey years, still active.

96Species 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 →
50Years 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
9Observers

Bird Species Found on Alabama Castleberry

Top 40 of 96 species by most recent count. Each links to its species trend.

Species recorded on the Castleberry 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 CardinalCardinalidae432024-29%1969
White-eyed VireoVireonidae362024+115%1969
Carolina WrenTroglodytidae312024+256%1969
American CrowCorvidae302024+11%1969
Canada GooseAnatidae25202313×2017
Double-crested CormorantPhalacrocoracidae232008n/an/a
Tufted TitmouseParidae192024+74%1969
Red-bellied WoodpeckerPicidae182024-2%1969
Great Crested FlycatcherTyrannidae182024+41%1969
Blue JayCorvidae152024-79%1969
Indigo BuntingCardinalidae152024+87%1969
Blue-gray GnatcatcherPolioptilidae142024+127%1969
Northern MockingbirdMimidae132024-48%1969
Mourning DoveColumbidae122024-59%1969
Black VultureCathartidae122023+86%1971
Eastern TowheePasserellidae102024-69%1969
Chimney SwiftApodidae92024+114%1969
Eastern BluebirdTurdidae92024+233%1971
Barn SwallowHirundinidae92024+560%1987
Summer TanagerCardinalidae72024+0%1969
Hooded WarblerParulidae72024+33%1969
Turkey VultureCathartidae72024-25%1982
Yellow-billed CuckooCuculidae62024+0%1969
Pine WarblerParulidae62024+3%1970
Yellow-breasted ChatIcteriidae62024-20%1969
House FinchFringillidae62024+200%2011
Pileated WoodpeckerPicidae52024+67%1969
Northern ParulaParulidae52024+150%1969
Eurasian Collared-DoveColumbidae52024+25%2003
Eastern KingbirdTyrannidae42023-59%1969
Eastern MeadowlarkIcteridae42024-45%1969
Carolina ChickadeeParidae42024-13%1969
Wood ThrushTurdidae42024-44%1969
Western Cattle-EgretArdeidae42024-41%1970
Purple MartinHirundinidae42024-70%1970
Wood DuckAnatidae42024+200%1996
Chuck-will's-widowCaprimulgidae32023-46%1969
Red-eyed VireoVireonidae32024-35%1969
Prairie WarblerParulidae32024+13%1971
Fish CrowCorvidae32019-88%1977

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