BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Duboistown Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 33 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1987–2024Span
2Observers

Bird Species Found on Pennsylvania Duboistown

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Duboistown 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
Red-eyed VireoVireonidae782024+120%1990
OvenbirdParulidae712024+100%1990
Eastern TowheePasserellidae602024+41%1990
American RobinTurdidae372024+168%1990
Chipping SparrowPasserellidae262024+34%1990
Black-and-white WarblerParulidae222024+146%1990
Chestnut-sided WarblerParulidae222024+957%1990
Common YellowthroatParulidae222024-34%1990
American RedstartParulidae222024+85%1991
Scarlet TanagerCardinalidae202024+6%1990
Black-throated Green WarblerParulidae19202411×1990
American CrowCorvidae162024+26%1990
Cedar WaxwingBombycillidae152024+72%1990
Wood ThrushTurdidae142024+9%1990
Song SparrowPasserellidae122024+22%1990
Mourning DoveColumbidae112024+86%1990
Eastern Wood-PeweeTyrannidae112024-4%1990
Gray CatbirdMimidae112024+14%1990
Blue JayCorvidae92024+110%1990
Blackburnian WarblerParulidae92024+367%1999
Hooded WarblerParulidae82024-14%1990
Red-winged BlackbirdIcteridae82024+243%1991
Eastern PhoebeTyrannidae62024+110%1990
Field SparrowPasserellidae62024+163%1990
Barn SwallowHirundinidae62024+79%1990
European StarlingSturnidae62024+63%1991
Northern House WrenTroglodytidae52024+67%1990
Tufted TitmouseParidae52024+8%1990
Black-capped ChickadeeParidae52024-63%1990
Carolina WrenTroglodytidae52024-22%2000
Red-bellied WoodpeckerPicidae52024+60%2010
Brown-headed CowbirdIcteridae42024+6%1990
House FinchFringillidae42024+0%1990
American GoldfinchFringillidae42024+18%1990
Indigo BuntingCardinalidae42024-54%1990
Canada WarblerParulidae42024+13%1991
Hermit ThrushTurdidae42021+22%1990
Yellow-billed CuckooCuculidae42022+67%1991
Worm-eating WarblerParulidae42024-22%1996
Louisiana WaterthrushParulidae42024+233%1999

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