BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Hop Bottom Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 126 species recorded across 54 survey years, still active.

126Species 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 →
54Years 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 Hop Bottom

Top 40 of 126 species by most recent count. Each links to its species trend.

Species recorded on the Hop Bottom 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 RobinTurdidae452025-36%1969
Song SparrowPasserellidae362025-26%1969
Canada GooseAnatidae352025+533%1998
American CrowCorvidae342025-17%1969
Red-winged BlackbirdIcteridae342025-67%1969
Gray CatbirdMimidae272025+45%1969
Yellow WarblerParulidae252025+59%1969
Mourning DoveColumbidae242025+346%1969
Common YellowthroatParulidae222025+56%1969
OvenbirdParulidae192025+323%1969
Chipping SparrowPasserellidae172025-57%1969
Cedar WaxwingBombycillidae172025+225%1969
Red-eyed VireoVireonidae172025+331%1969
Tufted TitmouseParidae162025+300%1969
Northern House WrenTroglodytidae152025-39%1969
Barn SwallowHirundinidae122025-61%1969
House SparrowPasseridae122025-65%1969
Chimney SwiftApodidae112025+56%1969
Eastern Wood-PeweeTyrannidae112025+189%1969
Common GrackleIcteridae112025-75%1969
European StarlingSturnidae102025-93%1969
Brown-headed CowbirdIcteridae102025-68%1969
American GoldfinchFringillidae102025-68%1969
Black-capped ChickadeeParidae102025+62%1969
Carolina WrenTroglodytidae102025+440%1971
Northern CardinalCardinalidae92025-49%1969
Indigo BuntingCardinalidae92025-12%1969
American RedstartParulidae92025+375%1970
Blue JayCorvidae82025-28%1969
Bank SwallowHirundinidae82005+817%1970
Wood ThrushTurdidae82025-37%1969
Red-bellied WoodpeckerPicidae82025+567%1997
Tree SwallowHirundinidae72025+240%1971
Turkey VultureCathartidae72024+200%1986
Eastern PhoebeTyrannidae62025-30%1969
Chestnut-sided WarblerParulidae52025-8%1969
Great Crested FlycatcherTyrannidae42025+17%1969
Scarlet TanagerCardinalidae42024-62%1969
VeeryTurdidae42025-40%1969
Rose-breasted GrosbeakCardinalidae42025+40%1971

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