BirdAnalyst
Species · Tennessee · BBS 2025 Release · 1966–2024

Bank Swallow Population Trend in Tennessee

All statesAerial insectivores

Bank Swallow in Tennessee has surged: up 448% on the route-weighted index since 1980.

+448%Since 1980TrendPercent 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 →
12Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
14YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Bank Swallow Trends in TennesseeNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Bank Swallow has surged in Tennessee: up 448% on the route-weighted index since 1980.

Bank Swallow Survey Routes in Tennessee

Routes recording Bank Swallow in Tennessee.
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 →
Big Sandy1920012001
Corryton Rd1820011990
Humboldt1320112011
Pawpaw1220111981
Moscow420022002
Harbuck420232023
Collinwood319801980
Bradyville220142014
Jefferson Cty119791979
Allens Brdge120062006
Fish Springs120051967
White House119811981

Bank Swallow Population Trend in Other States

alabamaalaskaarkansascaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.