BirdAnalyst
BBS Route · Tennessee · BCR 27

Mansfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 47 survey years, still active.

107Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
9Observers

Bird Species Found on Tennessee Mansfield

Top 40 of 107 species by most recent count. Each links to its species trend.

Species recorded on the Mansfield 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
Indigo BuntingCardinalidae1272025+258%1970
European StarlingSturnidae1222025+219%1970
American CrowCorvidae762025+251%1970
Red-winged BlackbirdIcteridae722025+183%1970
Mourning DoveColumbidae662025+20%1970
Brown-headed CowbirdIcteridae532025+297%1971
Turkey VultureCathartidae38202513×1974
Black VultureCathartidae38202514×1979
Yellow-breasted ChatIcteriidae372025+324%1970
Northern CardinalCardinalidae362025-14%1970
Northern MockingbirdMimidae342025-16%1970
Tufted TitmouseParidae332025+280%1970
Northern ParulaParulidae33202519×1977
Blue GrosbeakCardinalidae322025+517%1970
Barn SwallowHirundinidae322025-2%1970
Eastern BluebirdTurdidae292025+326%1970
Field SparrowPasserellidae282025+204%1971
Carolina WrenTroglodytidae282025+850%1971
Cliff SwallowHirundinidae282025+178%2021
Eastern Wood-PeweeTyrannidae272025+393%1970
Common YellowthroatParulidae272025+24%1970
White-eyed VireoVireonidae262025+393%1971
Red-bellied WoodpeckerPicidae242025+274%1971
Purple MartinHirundinidae24202517×1971
Acadian FlycatcherTyrannidae23202528×1977
Chipping SparrowPasserellidae212025+943%1972
Blue-gray GnatcatcherPolioptilidae212025+344%1974
Yellow-billed CuckooCuculidae202025+174%1970
American GoldfinchFringillidae20202514×1970
Orchard OrioleIcteridae182025+40%1970
Wood ThrushTurdidae182025+229%1970
Blue JayCorvidae172025-35%1970
Eastern TowheePasserellidae152025+10%1970
Summer TanagerCardinalidae142025+271%1971
Kentucky WarblerParulidae142025+567%1979
American RobinTurdidae142025+19%1970
Eastern KingbirdTyrannidae132025+4%1970
House SparrowPasseridae132025-6%1970
Great Crested FlycatcherTyrannidae122025+275%1973
Carolina ChickadeeParidae102025+68%1971

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