BirdAnalyst
BBS Route · Tennessee · BCR 27

Humboldt Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 39 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 →
39Years 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
9Observers

Bird Species Found on Tennessee Humboldt

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

Species recorded on the Humboldt 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 StarlingSturnidae5772024+614%1968
Indigo BuntingCardinalidae1102024+155%1968
Red-winged BlackbirdIcteridae832024+108%1968
Mourning DoveColumbidae762024-17%1968
Northern MockingbirdMimidae732024+35%1968
Northern CardinalCardinalidae652024-5%1968
Chipping SparrowPasserellidae472024+669%2002
Turkey VultureCathartidae45202437×2003
Common GrackleIcteridae402024-65%1968
Barn SwallowHirundinidae342024+358%1968
Eastern BluebirdTurdidae34202412×1968
American CrowCorvidae332024+113%1968
Eastern TowheePasserellidae332024+127%1968
Purple MartinHirundinidae322024+527%1968
American RobinTurdidae322024+276%1968
Brown-headed CowbirdIcteridae29202416×1969
Carolina WrenTroglodytidae292024+97%1968
Blue JayCorvidae252024+69%1968
Red-bellied WoodpeckerPicidae232024+189%1968
Field SparrowPasserellidae202024+108%1968
Tufted TitmouseParidae202024+317%1968
Yellow-breasted ChatIcteriidae192024+263%1968
Downy WoodpeckerPicidae182024+343%1968
Eastern MeadowlarkIcteridae172024-81%1968
Common YellowthroatParulidae172024-39%1968
House SparrowPasseridae172024-89%1968
Northern ParulaParulidae172024+620%2002
Cliff SwallowHirundinidae17202417×2021
Blue GrosbeakCardinalidae142024+333%1968
Brown ThrasherMimidae132024+105%1968
Eastern PhoebeTyrannidae132024+550%1972
House FinchFringillidae132024+250%2004
Bank SwallowHirundinidae132011n/an/a
Canada GooseAnatidae122024-6%2003
Black VultureCathartidae122024+433%2016
Great Crested FlycatcherTyrannidae112024+160%1968
Blue-gray GnatcatcherPolioptilidae112024+733%1968
Eastern Wood-PeweeTyrannidae102024+614%1968
White-eyed VireoVireonidae102024+150%1968
Summer TanagerCardinalidae102024+367%1983

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