BirdAnalyst
BBS Route · Alabama · BCR 27

Castleberry Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 51 survey years, still active.

98Species 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 →
1966–2025Span
9Observers

Bird Species Found on Alabama Castleberry

Top 40 of 98 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 CardinalCardinalidae902025+6%1969
American CrowCorvidae452025+37%1969
White-eyed VireoVireonidae442025+154%1969
Carolina WrenTroglodytidae342025+272%1969
Tufted TitmouseParidae282025+179%1969
Red-bellied WoodpeckerPicidae262025+37%1969
Northern MockingbirdMimidae252025-38%1969
Canada GooseAnatidae25202313×2017
Mourning DoveColumbidae232025-49%1969
Double-crested CormorantPhalacrocoracidae232008n/an/a
Blue-gray GnatcatcherPolioptilidae222025+200%1969
Barn SwallowHirundinidae222025+800%1987
Eastern TowheePasserellidae212025-62%1969
Blue JayCorvidae172025-78%1969
Great Crested FlycatcherTyrannidae152025+34%1969
Northern BobwhiteOdontophoridae122025-88%1969
Indigo BuntingCardinalidae122025+107%1969
Black VultureCathartidae122023+86%1971
Yellow-billed CuckooCuculidae92025+18%1969
Blue GrosbeakCardinalidae92025+64%1969
Hooded WarblerParulidae92025+75%1969
House SparrowPasseridae92025-91%1969
Eastern BluebirdTurdidae92025+233%1971
Purple MartinHirundinidae92025-48%1970
Brown-headed CowbirdIcteridae92025-35%1971
Pine WarblerParulidae82025-9%1970
Carolina ChickadeeParidae82025+7%1969
Red-eyed VireoVireonidae72025-20%1969
Wood ThrushTurdidae72025-6%1969
Pileated WoodpeckerPicidae62025+150%1969
Eastern MeadowlarkIcteridae62025-25%1969
Common GrackleIcteridae62025-72%1969
House FinchFringillidae62025+333%2011
Eastern KingbirdTyrannidae52025-41%1969
Red-shouldered HawkAccipitridae52025+100%1975
Fish CrowCorvidae52025-81%1977
KilldeerCharadriidae42025+100%1980
Red-headed WoodpeckerPicidae42025+0%1969
Summer TanagerCardinalidae42025+6%1969
Wood DuckAnatidae42024+200%1996

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