BBS Route · Pennsylvania · BCR 28

Shelocta Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 53 survey years, still active.

Bird Species Found on Pennsylvania Shelocta

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Shelocta 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 BlackbirdIcteridae702025-12%1970
American RobinTurdidae702025+16%1970
Red-eyed VireoVireonidae472025+264%1970
Song SparrowPasserellidae432025+56%1970
European StarlingSturnidae312025-26%1970
American CrowCorvidae242025+96%1970
Barn SwallowHirundinidae202025+146%1970
Gray CatbirdMimidae172025+2%1970
Wood ThrushTurdidae142025-57%1970
Common GrackleIcteridae132025-23%1970
Common YellowthroatParulidae132025+22%1970
Mourning DoveColumbidae112025+44%1970
Eastern TowheePasserellidae102025-59%1970
Northern CardinalCardinalidae102025+64%1970
Indigo BuntingCardinalidae102025+23%1970
OvenbirdParulidae92025+220%1971
Chipping SparrowPasserellidae82025-67%1970
Purple MartinHirundinidae81974-25%1970
Carolina WrenTroglodytidae82025+460%1973
Eastern Wood-PeweeTyrannidae72025+89%1970
Field SparrowPasserellidae72025-10%1970
Yellow WarblerParulidae72025-12%1970
Tufted TitmouseParidae72025+25%1970
Cedar WaxwingBombycillidae72025+440%1972
Canada GooseAnatidae72024-46%1996
Acadian FlycatcherTyrannidae62024+280%1970
American GoldfinchFringillidae62025-57%1970
Chimney SwiftApodidae62025-13%1971
Black-capped ChickadeeParidae62025+167%1971
Wood DuckAnatidae62025+100%1992
Wild TurkeyPhasianidae62025+325%1994
Northern House WrenTroglodytidae52025+8%1970
Northern MockingbirdMimidae52025+200%2002
House FinchFringillidae52025-25%1984
MallardAnatidae52024+40%1989
House SparrowPasseridae42025-69%1970
Northern Rough-winged SwallowHirundinidae42024+75%1979
Yellow-throated VireoVireonidae42025+225%1986
Red-bellied WoodpeckerPicidae42025+200%1989
Hooded WarblerParulidae42025-42%1986

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