BirdAnalyst
BBS Route · North Carolina · BCR 29

Biscoe Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 86 species recorded across 23 survey years, still active.

86Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2025Span
4Observers

Bird Species Found on North Carolina Biscoe

Top 40 of 86 species by most recent count. Each links to its species trend.

Species recorded on the Biscoe 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 CardinalCardinalidae402025+18%1992
Carolina WrenTroglodytidae392025+9%1992
Chipping SparrowPasserellidae272025-6%1992
American CrowCorvidae262025+11%1992
Red-eyed VireoVireonidae262025-19%1992
Tufted TitmouseParidae262025-7%1992
Northern MockingbirdMimidae232025+36%1992
Indigo BuntingCardinalidae212025+0%1992
Eastern BluebirdTurdidae182025+14%1992
American GoldfinchFringillidae162025+53%1992
Common YellowthroatParulidae152025+83%1992
Mourning DoveColumbidae112025-52%1992
Blue JayCorvidae112025-25%1992
House FinchFringillidae112025-7%1994
Brown-headed NuthatchSittidae112025+433%1993
Blue-gray GnatcatcherPolioptilidae112025-47%1992
Eastern TowheePasserellidae102025+19%1992
Summer TanagerCardinalidae102025+0%1992
Red-winged BlackbirdIcteridae92025+63%1992
Blue GrosbeakCardinalidae92025-8%1992
White-eyed VireoVireonidae92025+33%1992
Yellow-breasted ChatIcteriidae92025-4%1992
Red-bellied WoodpeckerPicidae82025-13%1992
Eastern Wood-PeweeTyrannidae82025-27%1992
Pine WarblerParulidae82025-59%1992
Carolina ChickadeeParidae82025-44%1992
American RobinTurdidae82025-72%1992
Cedar WaxwingBombycillidae72005+333%2000
Turkey VultureCathartidae72025-63%1997
Field SparrowPasserellidae62025+36%1992
Brown ThrasherMimidae62017+14%1992
Wood ThrushTurdidae62025-53%1992
Eastern PhoebeTyrannidae52025+0%1992
Acadian FlycatcherTyrannidae52025-44%1992
Yellow-throated VireoVireonidae52025-21%1992
OvenbirdParulidae52025-27%1992
Rock PigeonColumbidae51999+200%1994
Downy WoodpeckerPicidae42025-31%1992
Chimney SwiftApodidae42025-72%1992
Brown-headed CowbirdIcteridae42025-24%1992

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