BirdAnalyst
BBS Route · Pennsylvania · BCR 28

St College Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 124 species recorded across 49 survey years, still active.

124Species 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 →
49Years 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 St College

Top 40 of 124 species by most recent count. Each links to its species trend.

Species recorded on the St College 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 VireoVireonidae532025+350%1971
European StarlingSturnidae392025+80%1971
Chipping SparrowPasserellidae352025+7%1971
American RobinTurdidae352025-46%1971
Red-winged BlackbirdIcteridae312025-58%1971
OvenbirdParulidae302025+477%1971
Indigo BuntingCardinalidae212025+46%1971
Song SparrowPasserellidae202025+53%1971
Gray CatbirdMimidae192025+290%1971
Mourning DoveColumbidae182025+166%1971
Common GrackleIcteridae182025-78%1971
Canada GooseAnatidae182017-7%1997
American CrowCorvidae172025-60%1971
Northern CardinalCardinalidae162025+36%1971
Eastern TowheePasserellidae112025-46%1971
Cedar WaxwingBombycillidae112025-23%1972
Scarlet TanagerCardinalidae102025-14%1971
Black-throated Green WarblerParulidae102025+975%1972
Chimney SwiftApodidae92025-49%1971
Tufted TitmouseParidae92025+20%1971
Horned LarkAlaudidae92025+140%1973
Field SparrowPasserellidae82025-61%1971
House SparrowPasseridae82025-81%1971
Carolina WrenTroglodytidae82025+525%1979
Northern MockingbirdMimidae82024+450%1980
Wood ThrushTurdidae72025-50%1971
Yellow WarblerParulidae72025+350%1973
Rock PigeonColumbidae62025-90%1971
Blue JayCorvidae62025-54%1971
Savannah SparrowPasserellidae62025+300%1971
Barn SwallowHirundinidae62025-19%1971
Common YellowthroatParulidae62025+57%1971
Eastern BluebirdTurdidae62025+89%1976
Brown ThrasherMimidae52025+18%1971
Northern House WrenTroglodytidae52025-20%1971
Eastern Wood-PeweeTyrannidae42025+0%1971
Grasshopper SparrowPasserellidae42025-44%1971
American RedstartParulidae42025+38%1972
KilldeerCharadriidae32025-33%1971
American GoldfinchFringillidae32025-9%1971

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