BirdAnalyst
BBS Route · North Carolina · BCR 29

Biscoe Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 22 survey years, still active.

84Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2017Span
3Observers

Bird Species Found on North Carolina Biscoe

Top 40 of 84 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
American CrowCorvidae362017+52%1992
Indigo BuntingCardinalidae322017+19%1992
Carolina WrenTroglodytidae312017+5%1992
Red-eyed VireoVireonidae292017-8%1992
Common GrackleIcteridae282017+147%1992
Northern CardinalCardinalidae262017+15%1992
Blue GrosbeakCardinalidae162017-16%1992
Tufted TitmouseParidae132017-21%1992
Red-bellied WoodpeckerPicidae122017+3%1992
Chipping SparrowPasserellidae122017-13%1992
Summer TanagerCardinalidae122017+8%1992
Yellow-breasted ChatIcteriidae122017-19%1992
Wood ThrushTurdidae102017-43%1992
Northern MockingbirdMimidae92017+6%1992
Eastern BluebirdTurdidae92017+30%1992
Field SparrowPasserellidae82017+55%1992
Purple MartinHirundinidae82017+300%1992
Common YellowthroatParulidae82017+39%1992
Mourning DoveColumbidae72017-30%1992
American GoldfinchFringillidae72017-24%1992
Cedar WaxwingBombycillidae72005+333%2000
Eastern Wood-PeweeTyrannidae62017-8%1992
Brown-headed CowbirdIcteridae62017+10%1992
Eastern MeadowlarkIcteridae62017-16%1992
Eastern TowheePasserellidae62017+67%1992
Brown ThrasherMimidae62017+14%1992
KilldeerCharadriidae52010+60%1993
Blue JayCorvidae52017-29%1992
Pine WarblerParulidae52017-67%1992
Prairie WarblerParulidae52017-20%1992
OvenbirdParulidae52017+0%1992
Rock PigeonColumbidae51999+200%1994
Chimney SwiftApodidae42017-62%1992
Orchard OrioleIcteridae42017+100%1992
Hooded WarblerParulidae42017+71%1992
Red-shouldered HawkAccipitridae42017+233%1993
Turkey VultureCathartidae42017+94%1997
Pileated WoodpeckerPicidae32017+100%1992
Acadian FlycatcherTyrannidae32017-35%1992
Scarlet TanagerCardinalidae32007-14%1992

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