BirdAnalyst
BBS Route · South Carolina · BCR 27

Green Sea Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 6 survey years, still active.

76Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2010–2024Span
2Observers

Bird Species Found on South Carolina Green Sea

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Green Sea 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 CardinalCardinalidae662024+31%2021
American CrowCorvidae482024+24%2021
Carolina WrenTroglodytidae452024+21%2021
Mourning DoveColumbidae372024+0%2021
Tufted TitmouseParidae342024+57%2021
Northern MockingbirdMimidae302024-42%2021
Blue GrosbeakCardinalidae232024+40%2021
Blue JayCorvidae212024+150%2021
Red-bellied WoodpeckerPicidae192024-3%2021
Great Crested FlycatcherTyrannidae162024+29%2021
Pine WarblerParulidae152024+150%2021
Orchard OrioleIcteridae132024+7%2021
Carolina ChickadeeParidae132024-9%2021
Eastern TowheePasserellidae122024-10%2021
Eastern KingbirdTyrannidae112024-41%2021
Brown-headed CowbirdIcteridae102024-23%2021
Brown ThrasherMimidae102024+20%2021
Indigo BuntingCardinalidae92024+2%2021
White-eyed VireoVireonidae92024+18%2021
Blue-gray GnatcatcherPolioptilidae92024+4%2021
Chimney SwiftApodidae82024-13%2019
KilldeerCharadriidae72024+100%2021
Fish CrowCorvidae72024-11%2021
Common GrackleIcteridae72024-70%2021
Pileated WoodpeckerPicidae62024+200%2021
Red-winged BlackbirdIcteridae62024-29%2021
Turkey VultureCathartidae62024-66%2021
Canada GooseAnatidae62023n/an/a
Yellow-billed CuckooCuculidae52024-41%2019
Wild TurkeyPhasianidae52024+17%2022
Purple MartinHirundinidae52024-63%2021
OvenbirdParulidae52024+0%2021
Red-headed WoodpeckerPicidae42024-17%2019
Chipping SparrowPasserellidae42024-10%2021
Barn SwallowHirundinidae42024-54%2021
Yellow-breasted ChatIcteriidae42024-54%2021
Downy WoodpeckerPicidae42024+71%2021
Prairie WarblerParulidae42024+150%2021
Summer TanagerCardinalidae32024-36%2021
Prothonotary WarblerParulidae32024+50%2021

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