BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Millville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 55 survey years, still active.

117Species 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 →
55Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2024Span
4Observers

Bird Species Found on Pennsylvania Millville

Top 40 of 117 species by most recent count. Each links to its species trend.

Species recorded on the Millville 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
American RobinTurdidae1202024+84%1971
Red-winged BlackbirdIcteridae652024-27%1971
European StarlingSturnidae442024-22%1971
Song SparrowPasserellidae432024+172%1971
House SparrowPasseridae432024+10%1971
Gray CatbirdMimidae422024+444%1971
Mourning DoveColumbidae402024+34%1971
Common GrackleIcteridae402024-84%1971
American CrowCorvidae332024-37%1971
Barn SwallowHirundinidae262024-12%1971
Tufted TitmouseParidae26202428×1974
Carolina WrenTroglodytidae242024+680%1975
House FinchFringillidae242024+511%1982
Northern House WrenTroglodytidae212024+185%1971
Red-eyed VireoVireonidae202024+522%1978
Rock PigeonColumbidae192024-81%1971
Blue JayCorvidae162024+400%1972
Northern CardinalCardinalidae152024+214%1971
Yellow WarblerParulidae15202415×1976
Common YellowthroatParulidae15202415×1975
Field SparrowPasserellidae142024+311%1971
Northern MockingbirdMimidae142024+330%1972
Indigo BuntingCardinalidae142024+32%1976
Eastern TowheePasserellidae132024+238%1971
Wood ThrushTurdidae122024+111%1972
KilldeerCharadriidae112024+160%1973
Chipping SparrowPasserellidae102024+5%1971
American GoldfinchFringillidae92024+159%1971
American KestrelFalconidae82024+57%1971
Eastern PhoebeTyrannidae72024+400%1973
Baltimore OrioleIcteridae72024+346%1971
Eastern BluebirdTurdidae72024+450%1975
Red-bellied WoodpeckerPicidae72024+633%1980
Orchard OrioleIcteridae62024+350%1980
Scarlet TanagerCardinalidae62024-10%1979
Purple MartinHirundinidae52024+150%1978
Brown ThrasherMimidae52024+60%1971
Turkey VultureCathartidae52024+120%1996
Belted KingfisherAlcedinidae42019+0%1977
Eastern KingbirdTyrannidae42024+100%1972

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