BirdAnalyst
BBS Route · Pennsylvania · BCR 13

Ferris Crnrs Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 127 species recorded across 46 survey years, still active.

127Species 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 →
46Years 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
5Observers

Bird Species Found on Pennsylvania Ferris Crnrs

Top 40 of 127 species by most recent count. Each links to its species trend.

Species recorded on the Ferris Crnrs 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-winged BlackbirdIcteridae822024-66%1968
American RobinTurdidae812024+31%1968
Canada GooseAnatidae662023+144%1990
American CrowCorvidae602024+205%1968
European StarlingSturnidae452024+56%1968
Song SparrowPasserellidae442024+11%1968
Common GrackleIcteridae402024-41%1968
Common YellowthroatParulidae302024+184%1968
American GoldfinchFringillidae272024+96%1968
Gray CatbirdMimidae262024+619%1968
Indigo BuntingCardinalidae242024+400%1968
Cedar WaxwingBombycillidae202024+129%1970
Red-eyed VireoVireonidae192024+744%1968
Chipping SparrowPasserellidae182024+289%1968
Northern CardinalCardinalidae182024+318%1968
House SparrowPasseridae182024-23%1968
Mourning DoveColumbidae172024+578%1968
Barn SwallowHirundinidae162024+29%1968
Yellow WarblerParulidae152024-46%1968
Swamp SparrowPasserellidae132024+346%1968
Northern House WrenTroglodytidae112024+91%1968
Red-bellied WoodpeckerPicidae102024+300%2008
Warbling VireoVireonidae82024+350%1969
Turkey VultureCathartidae82024+260%1995
Brown-headed CowbirdIcteridae72024+67%1968
Eastern MeadowlarkIcteridae72024-78%1968
Eastern TowheePasserellidae72024+500%1968
Red-tailed HawkAccipitridae62024+200%1971
Chimney SwiftApodidae62023+21%1968
Common RavenCorvidae62024+300%2014
Willow FlycatcherTyrannidae52024-50%1975
Blue JayCorvidae52024+72%1969
Eastern BluebirdTurdidae52024+67%1986
Common MerganserAnatidae52021+400%1997
KilldeerCharadriidae42024-50%1968
Tree SwallowHirundinidae42024+86%1970
Wood ThrushTurdidae42024+183%1970
Ring-necked PheasantPhasianidae31995-20%1969
Rock PigeonColumbidae32024+0%1968
Eastern KingbirdTyrannidae32024+50%1968

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