BirdAnalyst
BBS Route · New York · BCR 13

Philadelphia Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 127 species recorded across 34 survey years, still active.

127Species 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 →
34Years 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
3Observers

Bird Species Found on New York Philadelphia

Top 40 of 127 species by most recent count. Each links to its species trend.

Species recorded on the Philadelphia 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 StarlingSturnidae882024+296%1983
Red-winged BlackbirdIcteridae722024-17%1983
American RobinTurdidae532024+38%1983
American CrowCorvidae432024+87%1983
Yellow WarblerParulidae372024+65%1983
Song SparrowPasserellidae332024-9%1983
Red-eyed VireoVireonidae302024+631%1983
Common YellowthroatParulidae292024+48%1983
Barn SwallowHirundinidae282024-49%1983
Chipping SparrowPasserellidae242024+47%1983
Gray CatbirdMimidae222024+140%1983
Eastern TowheePasserellidae202024+114%1983
Indigo BuntingCardinalidae192024+104%1983
American GoldfinchFringillidae182024+70%1983
Mourning DoveColumbidae172024+145%1983
Eastern PhoebeTyrannidae172024+246%1983
American RedstartParulidae162024+478%1985
Northern House WrenTroglodytidae142024+83%1983
Eastern Wood-PeweeTyrannidae112024+16%1983
Cedar WaxwingBombycillidae112024+580%1983
Blue JayCorvidae102024+233%1983
BobolinkIcteridae102024-14%1983
Eastern MeadowlarkIcteridae102024-52%1983
Turkey VultureCathartidae102024+4%1989
Northern CardinalCardinalidae102024+350%1995
Black-and-white WarblerParulidae92024+367%1983
Golden-winged WarblerParulidae92024+375%1993
Common RavenCorvidae92024+775%2004
Savannah SparrowPasserellidae82024-28%1983
Swamp SparrowPasserellidae82024+142%1983
Rose-breasted GrosbeakCardinalidae82024+64%1983
Marsh WrenTroglodytidae82024+58%1983
Wood ThrushTurdidae82024+54%1983
KilldeerCharadriidae72024-46%1983
OvenbirdParulidae72024+400%1988
Black-capped ChickadeeParidae72024+57%1983
Chestnut-sided WarblerParulidae72024+433%1987
Field SparrowPasserellidae62024-46%1983
House SparrowPasseridae62024-11%1983
White-breasted NuthatchSittidae62024+17%1983

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