BirdAnalyst
BBS Route · Tennessee · BCR 27

Brownsville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 55 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
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 BuntingCardinalidae422024+13%1968
Northern MockingbirdMimidae362024-24%1968
Northern CardinalCardinalidae332024-36%1968
Mourning DoveColumbidae282024+29%1968
Barn SwallowHirundinidae242024+163%1968
Carolina WrenTroglodytidae212024+313%1968
Tufted TitmouseParidae192024+219%1968
American CrowCorvidae172024+44%1968
European StarlingSturnidae172024-13%1968
Brown-headed CowbirdIcteridae172024+460%1968
Blue GrosbeakCardinalidae172024+575%1969
Common YellowthroatParulidae172024-34%1968
Blue JayCorvidae162024-37%1968
Field SparrowPasserellidae162024+88%1968
Eastern TowheePasserellidae162024+59%1968
Yellow-breasted ChatIcteriidae162024+28%1968
Red-bellied WoodpeckerPicidae142024+486%1968
White-eyed VireoVireonidae142024+514%1969
Red-winged BlackbirdIcteridae112024-20%1968
Eastern BluebirdTurdidae112024+156%1969
Summer TanagerCardinalidae102024+100%1968
Chipping SparrowPasserellidae9202411×1997
Yellow-billed CuckooCuculidae82024+350%1968
Eastern Wood-PeweeTyrannidae82024+667%1968
Carolina ChickadeeParidae82024+40%1975
American RobinTurdidae82024-21%1968
Baltimore OrioleIcteridae62006+233%1968
Brown ThrasherMimidae62024-50%1968
Downy WoodpeckerPicidae62024+117%1976
Great Crested FlycatcherTyrannidae52024+275%1968
Acadian FlycatcherTyrannidae52024+225%1992
House SparrowPasseridae52024-74%1968
Wood ThrushTurdidae52024+55%1968
Gray CatbirdMimidae52010+75%1976
American GoldfinchFringillidae52024+125%1976
Northern Rough-winged SwallowHirundinidae52023+75%1985
Northern BobwhiteOdontophoridae42024-88%1968
Orchard OrioleIcteridae42023-71%1968
Common GrackleIcteridae42024-90%1968
Red-eyed VireoVireonidae42024+225%1969

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