BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Sigel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 34 survey years, still active.

116Species 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 →
1981–2025Span
5Observers

Bird Species Found on Pennsylvania Sigel

Top 40 of 116 species by most recent count. Each links to its species trend.

Species recorded on the Sigel 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 StarlingSturnidae1032025+256%1989
Red-eyed VireoVireonidae812025+181%1989
American RobinTurdidae732025+50%1989
Red-winged BlackbirdIcteridae602025+46%1989
Common YellowthroatParulidae482025+40%1989
Song SparrowPasserellidae472025+15%1989
OvenbirdParulidae392025+750%1989
American CrowCorvidae262025-26%1989
Northern CardinalCardinalidae262025+67%1989
Eastern TowheePasserellidae252025+56%1989
Gray CatbirdMimidae252025+65%1989
Mourning DoveColumbidae232025+26%1989
Common GrackleIcteridae222025-58%1989
Chipping SparrowPasserellidae222025-23%1989
Northern House WrenTroglodytidae202025+248%1989
Yellow WarblerParulidae192025+44%1989
Indigo BuntingCardinalidae182025-4%1989
Blue JayCorvidae162025+121%1989
Field SparrowPasserellidae152025-19%1989
Black-capped ChickadeeParidae152025+83%1989
Wood ThrushTurdidae152025-6%1989
Eastern PhoebeTyrannidae142025+175%1989
Cedar WaxwingBombycillidae142025+66%1989
American GoldfinchFringillidae132025+83%1989
Scarlet TanagerCardinalidae102025+217%1990
Tufted TitmouseParidae102025+246%1991
Barn SwallowHirundinidae82025-23%1989
Chimney SwiftApodidae72025-58%1989
BobolinkIcteridae72025+213%1989
Eastern BluebirdTurdidae72025+86%1990
Eastern Wood-PeweeTyrannidae62025+33%1989
Chestnut-sided WarblerParulidae62025+8%1989
Hooded WarblerParulidae62025+425%1991
House SparrowPasseridae62025-78%1989
Northern BobwhiteOdontophoridae61995n/an/a
Yellow-bellied SapsuckerPicidae62025+100%2005
Eastern MeadowlarkIcteridae52025-36%1989
White-breasted NuthatchSittidae52025+367%1989
Red-bellied WoodpeckerPicidae52025+500%1998
Pileated WoodpeckerPicidae42025+60%1996

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