BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Millville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 56 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 →
56Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
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 RobinTurdidae1172025+82%1971
European StarlingSturnidae832025-6%1971
Common GrackleIcteridae612025-82%1971
Red-winged BlackbirdIcteridae592025-35%1971
Gray CatbirdMimidae592025+496%1971
Mourning DoveColumbidae502025+33%1971
Song SparrowPasserellidae502025+172%1971
House SparrowPasseridae422025+12%1971
American CrowCorvidae362025-34%1971
House FinchFringillidae342025+711%1982
Northern CardinalCardinalidae282025+218%1971
Rock PigeonColumbidae262025-70%1971
Tufted TitmouseParidae22202526×1974
Carolina WrenTroglodytidae202025+960%1975
Indigo BuntingCardinalidae202025+109%1976
Barn SwallowHirundinidae192025+3%1971
Chipping SparrowPasserellidae172025+10%1971
Northern House WrenTroglodytidae172025+165%1971
Red-eyed VireoVireonidae162025+500%1978
American GoldfinchFringillidae152025+171%1971
Blue JayCorvidae122025+486%1972
Northern MockingbirdMimidae122025+340%1972
KilldeerCharadriidae102025+180%1973
Yellow WarblerParulidae10202515×1976
Eastern TowheePasserellidae92025+263%1971
Common YellowthroatParulidae9202514×1975
Wood ThrushTurdidae92025+178%1972
Fish CrowCorvidae92025-5%1994
American KestrelFalconidae82024+57%1971
Field SparrowPasserellidae82025+289%1971
Eastern BluebirdTurdidae82025+350%1975
Purple MartinHirundinidae72025+275%1978
Red-bellied WoodpeckerPicidae72025+467%1980
Downy WoodpeckerPicidae62025+113%1971
Baltimore OrioleIcteridae62025+255%1971
Scarlet TanagerCardinalidae62025+0%1979
Wild TurkeyPhasianidae62025+140%1997
Eastern PhoebeTyrannidae52025+350%1973
Belted KingfisherAlcedinidae42019+0%1977
Great Crested FlycatcherTyrannidae42025+333%1976

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