BirdAnalyst
BBS Route · South Carolina · BCR 27

Walterboro Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 36 survey years, still active.

92Species 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2017Span
3Observers

Bird Species Found on South Carolina Walterboro

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Walterboro 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 CardinalCardinalidae822017-14%1972
American CrowCorvidae722017-11%1972
Blue-gray GnatcatcherPolioptilidae382017+39%1973
Carolina WrenTroglodytidae372017-30%1972
Blue JayCorvidae352017-41%1972
Northern MockingbirdMimidae352017+8%1972
Northern ParulaParulidae312017-55%1972
Tufted TitmouseParidae302017+111%1972
Pine WarblerParulidae272017+342%1972
Mourning DoveColumbidae242017-39%1972
White-eyed VireoVireonidae242017+40%1972
Carolina ChickadeeParidae222017+7%1972
Turkey VultureCathartidae212017+211%1972
Red-bellied WoodpeckerPicidae212017+10%1972
Eastern TowheePasserellidae202017-24%1972
Great Crested FlycatcherTyrannidae192017+77%1972
Black VultureCathartidae162017+210%1972
Acadian FlycatcherTyrannidae142017-18%1972
Summer TanagerCardinalidae142017+42%1972
Barn SwallowHirundinidae12201712×1992
Downy WoodpeckerPicidae112017+160%1973
Indigo BuntingCardinalidae102017-64%1972
Brown ThrasherMimidae102017-4%1972
Pileated WoodpeckerPicidae92017+0%1972
Chimney SwiftApodidae92017-69%1972
Eastern Wood-PeweeTyrannidae92017-50%1972
Eastern BluebirdTurdidae92017+133%1972
Common YellowthroatParulidae82017-70%1972
Canada GooseAnatidae82017+89%2001
Red-eyed VireoVireonidae72017-18%1972
Mississippi KiteAccipitridae72017+133%1997
Blue GrosbeakCardinalidae62017+18%1972
Purple MartinHirundinidae62017+144%1972
Orchard OrioleIcteridae52017+33%1973
Yellow-throated WarblerParulidae52017-75%1972
Yellow-breasted ChatIcteriidae52017-24%1972
Western Cattle-EgretArdeidae52017-84%1973
White-breasted NuthatchSittidae52017+50%1987
Brown-headed CowbirdIcteridae42017-68%1972
Common GrackleIcteridae42009-81%1972

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