BirdAnalyst
BBS Route · West Virginia · BCR 28

Spencer Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 27 survey years, still active.

100Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2024Span
6Observers

Bird Species Found on West Virginia Spencer

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Spencer 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 StarlingSturnidae932024+44%1999
Barn SwallowHirundinidae582024+17%1999
American CrowCorvidae512024+0%1999
Northern CardinalCardinalidae432024+46%1999
Red-winged BlackbirdIcteridae412024+31%1999
American RobinTurdidae382024-22%1999
Song SparrowPasserellidae282024-37%1999
Mourning DoveColumbidae272024+52%1999
Carolina WrenTroglodytidae272024+60%1999
Indigo BuntingCardinalidae202024-55%1999
Northern MockingbirdMimidae182024+30%1999
Yellow WarblerParulidae142024-38%1999
Eastern BluebirdTurdidae142024-16%1999
Red-eyed VireoVireonidae132024-60%1999
Eastern PhoebeTyrannidae122024-52%1999
Common GrackleIcteridae122024-37%1999
Tufted TitmouseParidae102024+0%1999
American GoldfinchFringillidae92024-56%1999
Blue JayCorvidae82024+171%1999
Common YellowthroatParulidae82024-49%1999
White-breasted NuthatchSittidae82024+113%1999
Wood ThrushTurdidae82024-40%1999
Red-bellied WoodpeckerPicidae72024+67%1999
White-eyed VireoVireonidae72024-10%1999
Gray CatbirdMimidae72024-47%1999
Turkey VultureCathartidae72024+96%2000
American KestrelFalconidae72024-36%2004
Eastern Wood-PeweeTyrannidae62024+9%1999
Chipping SparrowPasserellidae62024-61%1999
Field SparrowPasserellidae62024-32%1999
Yellow-billed CuckooCuculidae52024-50%1999
Downy WoodpeckerPicidae52023+50%1999
Eastern TowheePasserellidae52024-30%1999
House SparrowPasseridae52024-76%1999
Rock PigeonColumbidae52024+33%2006
Wild TurkeyPhasianidae52024+33%2005
Brown-headed CowbirdIcteridae42024-5%1999
Orchard OrioleIcteridae42024-65%1999
Scarlet TanagerCardinalidae42024-47%1999
Yellow-breasted ChatIcteriidae42024-75%1999

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