BirdAnalyst
BBS Route · Pennsylvania · BCR 13

Sugar Grove Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 115 species recorded across 31 survey years, still active.

115Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2024Span
4Observers

Bird Species Found on Pennsylvania Sugar Grove

Top 40 of 115 species by most recent count. Each links to its species trend.

Species recorded on the Sugar Grove 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
European StarlingSturnidae3832024+455%1982
American RobinTurdidae982024+7%1982
Song SparrowPasserellidae832024+18%1982
Red-winged BlackbirdIcteridae792024-26%1982
Barn SwallowHirundinidae542024+122%1982
Rock PigeonColumbidae49202415×1995
American CrowCorvidae492024+77%1982
Gray CatbirdMimidae422024+98%1982
American GoldfinchFringillidae352024+89%1982
Common YellowthroatParulidae282024-19%1982
Purple MartinHirundinidae28202424×2004
Mourning DoveColumbidae242024+161%1982
Chestnut-sided WarblerParulidae192024+325%1983
Eastern Wood-PeweeTyrannidae182024+139%1982
Blue JayCorvidae182024+50%1982
Common GrackleIcteridae182024+13%1982
Northern CardinalCardinalidae182024+310%1982
Tree SwallowHirundinidae172024+229%1982
Brown-headed CowbirdIcteridae152023+35%1982
Red-eyed VireoVireonidae152024+67%1982
Cedar WaxwingBombycillidae132024+54%1982
House SparrowPasseridae132024-51%1982
Eastern TowheePasserellidae112024+111%1982
Black-capped ChickadeeParidae112024+333%1982
Chipping SparrowPasserellidae102024-48%1982
KilldeerCharadriidae92024-17%1982
House FinchFringillidae92024+50%1995
Savannah SparrowPasserellidae92024-62%1982
Wood ThrushTurdidae92024-45%1982
VeeryTurdidae92024+167%1984
Yellow WarblerParulidae82024-49%1982
Eastern PhoebeTyrannidae82024+129%1983
Eastern KingbirdTyrannidae72024+0%1982
Northern House WrenTroglodytidae72024-35%1982
White-breasted NuthatchSittidae62024+160%1983
Eastern BluebirdTurdidae62024+133%1983
Downy WoodpeckerPicidae52023+25%1982
Chimney SwiftApodidae52024-42%1982
American KestrelFalconidae52024+83%1983
Warbling VireoVireonidae52024+233%1999

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