BirdAnalyst
BBS Route · Tennessee · BCR 27

Brownsville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 56 survey years, still active.

95Species 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 →
56Years 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
7Observers

Bird Species Found on Tennessee Brownsville

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Brownsville 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 BuntingCardinalidae522025+30%1968
European StarlingSturnidae452025+18%1968
Common GrackleIcteridae392025-80%1968
Northern CardinalCardinalidae342025-35%1968
Mourning DoveColumbidae312025+30%1968
Blue GrosbeakCardinalidae302025+738%1969
Carolina WrenTroglodytidae302025+425%1968
Yellow-breasted ChatIcteriidae282025+57%1968
Northern MockingbirdMimidae272025-23%1968
Tufted TitmouseParidae252025+313%1968
Common YellowthroatParulidae222025-30%1968
American CrowCorvidae202025+82%1968
Field SparrowPasserellidae182025+96%1968
Blue JayCorvidae172025-30%1968
Brown-headed CowbirdIcteridae162025+480%1968
Red-winged BlackbirdIcteridae162025-24%1968
Eastern BluebirdTurdidae142025+267%1969
Barn SwallowHirundinidae132025+179%1968
Eastern TowheePasserellidae122025+38%1968
American RobinTurdidae112025-29%1968
Summer TanagerCardinalidae92025+155%1968
White-eyed VireoVireonidae92025+500%1969
House SparrowPasseridae92025-71%1968
Yellow-billed CuckooCuculidae82025+450%1968
Red-bellied WoodpeckerPicidae82025+371%1968
Eastern Wood-PeweeTyrannidae72025+700%1968
KilldeerCharadriidae72025+0%1969
Baltimore OrioleIcteridae62006+233%1968
Wood ThrushTurdidae62025+46%1968
Gray CatbirdMimidae52010+75%1976
Northern Rough-winged SwallowHirundinidae52023+75%1985
Cliff SwallowHirundinidae52025+25%2022
Northern BobwhiteOdontophoridae32025-89%1968
Chimney SwiftApodidae32025-84%1968
Great Crested FlycatcherTyrannidae32025+275%1968
Acadian FlycatcherTyrannidae32025+200%1992
Blue-gray GnatcatcherPolioptilidae32025+80%1971
Chipping SparrowPasserellidae32025+667%1997
Double-crested CormorantPhalacrocoracidae32015n/an/a
Red-tailed HawkAccipitridae22024-20%1984

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