BirdAnalyst
BBS Route · Tennessee · BCR 28

Allens Brdge Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 104 species recorded across 54 survey years, still active.

104Species 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 →
54Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2023Span
4Observers

Bird Species Found on Tennessee Allens Brdge

Top 40 of 104 species by most recent count. Each links to its species trend.

Species recorded on the Allens Brdge 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
European StarlingSturnidae3582023+236%1968
American RobinTurdidae482023+296%1968
Mourning DoveColumbidae442023+16%1968
Northern CardinalCardinalidae402023-22%1968
Barn SwallowHirundinidae382023+100%1968
Red-winged BlackbirdIcteridae342023+71%1968
American CrowCorvidae222023-43%1968
Indigo BuntingCardinalidae202023-21%1968
Carolina WrenTroglodytidae192023+65%1968
Eastern MeadowlarkIcteridae162023-73%1968
Field SparrowPasserellidae152023-56%1968
Northern MockingbirdMimidae142023-67%1968
Blue JayCorvidae122023-43%1968
American GoldfinchFringillidae11202312×1970
Chipping SparrowPasserellidae102023-47%1968
House SparrowPasseridae102023-59%1968
MallardAnatidae102023+167%2007
Tufted TitmouseParidae92023-18%1968
Eastern BluebirdTurdidae92023+246%1969
Carolina ChickadeeParidae82023+14%1968
Cliff SwallowHirundinidae82023+15%2015
Common GrackleIcteridae72023-85%1968
Song SparrowPasserellidae72023-46%1968
Northern House WrenTroglodytidae72023+333%1997
Tree SwallowHirundinidae72023+350%1997
Eastern KingbirdTyrannidae62023+25%1968
Red-eyed VireoVireonidae62023+183%1970
Brown ThrasherMimidae62023+78%1968
Wild TurkeyPhasianidae62023+63%2007
Yellow-billed CuckooCuculidae42023-38%1968
Red-bellied WoodpeckerPicidae42023+82%1968
Grasshopper SparrowPasserellidae42023-87%1968
Eastern TowheePasserellidae42023+50%1968
House FinchFringillidae42023-7%1994
Northern ParulaParulidae42023+67%2019
Pileated WoodpeckerPicidae32023-33%1972
Eastern Wood-PeweeTyrannidae32023-33%1968
Brown-headed CowbirdIcteridae32023+130%1968
Orchard OrioleIcteridae32023-62%1968
Common YellowthroatParulidae32023-68%1968

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