BirdAnalyst
BBS Route · North Carolina · BCR 27

Supply Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 122 species recorded across 33 survey years, still active.

122Species 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2025Span
1Observers

Bird Species Found on North Carolina Supply

Top 40 of 122 species by most recent count. Each links to its species trend.

Species recorded on the Supply 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 CardinalCardinalidae642025+16%1994
Carolina WrenTroglodytidae532025-14%1994
Tufted TitmouseParidae472025+82%1994
Great Crested FlycatcherTyrannidae382025-25%1994
American CrowCorvidae352025-20%1994
Mourning DoveColumbidae302025-48%1994
Turkey VultureCathartidae302025+107%1994
Pine WarblerParulidae292025-37%1994
Northern MockingbirdMimidae252025-16%1994
Common GrackleIcteridae232025-59%1994
Red-headed WoodpeckerPicidae202025+111%1994
Eastern BluebirdTurdidae202025+24%1994
Red-bellied WoodpeckerPicidae192025+29%1994
Brown-headed CowbirdIcteridae192025-36%1994
Blue-gray GnatcatcherPolioptilidae172025-50%1994
European StarlingSturnidae162025-46%1994
Red-eyed VireoVireonidae152025-53%1994
Prothonotary WarblerParulidae152025+27%1994
Yellow-billed CuckooCuculidae122025-65%1994
Purple MartinHirundinidae122025-46%1994
White-eyed VireoVireonidae122025-62%1994
Indigo BuntingCardinalidae112025-76%1994
Double-crested CormorantPhalacrocoracidae112021+67%2002
Red-winged BlackbirdIcteridae102025+81%1994
Brown-headed NuthatchSittidae102025-31%1994
Blue GrosbeakCardinalidae92025-62%1994
Carolina ChickadeeParidae92025-57%1994
American RobinTurdidae92025+171%1994
Fish CrowCorvidae82025-32%1994
Eastern KingbirdTyrannidae72025-52%1994
Northern ParulaParulidae72025-49%1994
Yellow-throated WarblerParulidae72025-30%1994
House FinchFringillidae72025+6%2001
Swallow-tailed KiteAccipitridae72025+17%2019
KilldeerCharadriidae62025+117%1994
Chuck-will's-widowCaprimulgidae62025-43%1994
Chimney SwiftApodidae62025-77%1994
Blue JayCorvidae62025-73%1994
Eastern TowheePasserellidae62025-84%1994
Summer TanagerCardinalidae62025-66%1994

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