BirdAnalyst
BBS Route · Pennsylvania · BCR 13

Espyville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 123 species recorded across 41 survey years, still active.

123Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
5Observers

Bird Species Found on Pennsylvania Espyville

Top 40 of 123 species by most recent count. Each links to its species trend.

Species recorded on the Espyville 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 RobinTurdidae942025-17%1971
Red-winged BlackbirdIcteridae602025-72%1971
House SparrowPasseridae512025-30%1971
American CrowCorvidae462025+33%1971
European StarlingSturnidae412025-22%1971
Northern CardinalCardinalidae372025+111%1971
Song SparrowPasserellidae302025-10%1971
Red-eyed VireoVireonidae222025+91%1971
Chipping SparrowPasserellidae202025+165%1971
Yellow WarblerParulidae202025-31%1971
Gray CatbirdMimidae202025+85%1971
Mourning DoveColumbidae192025-22%1971
Red-bellied WoodpeckerPicidae192025+500%1995
Tufted TitmouseParidae182025+250%1971
Northern House WrenTroglodytidae172025+24%1971
Canada GooseAnatidae172025-17%1989
Common GrackleIcteridae162025-80%1971
Ring-billed GullLaridae162024+175%2000
Cedar WaxwingBombycillidae152025+108%1972
Blue JayCorvidae142025+55%1971
Eastern Wood-PeweeTyrannidae132025+19%1971
KilldeerCharadriidae102025+23%1971
American GoldfinchFringillidae102025-70%1971
Brown-headed CowbirdIcteridae92025-85%1971
Barn SwallowHirundinidae92025+14%1971
Black-capped ChickadeeParidae92025+260%1972
Wood ThrushTurdidae92025-74%1971
Chimney SwiftApodidae72025-66%1971
Indigo BuntingCardinalidae72025-17%1972
Carolina WrenTroglodytidae72025+325%1994
Common YellowthroatParulidae62025-56%1971
Warbling VireoVireonidae62025+0%1973
Baltimore OrioleIcteridae52025-47%1971
Field SparrowPasserellidae52025-82%1971
Turkey VultureCathartidae52025+0%1993
Common RavenCorvidae51989n/an/a
Eastern PhoebeTyrannidae42025+13%1971
Eastern TowheePasserellidae42025-43%1971
Scarlet TanagerCardinalidae42025+33%1971
Tree SwallowHirundinidae42023-52%1989

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