BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Sigel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 33 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1981–2024Span
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 StarlingSturnidae1492024+133%1989
American RobinTurdidae942024+52%1989
Red-winged BlackbirdIcteridae702024+42%1989
Red-eyed VireoVireonidae652024+157%1989
Song SparrowPasserellidae432024+18%1989
OvenbirdParulidae432024+693%1989
American CrowCorvidae342024-25%1989
Northern House WrenTroglodytidae312024+243%1989
Chipping SparrowPasserellidae292024-20%1989
Gray CatbirdMimidae272024+61%1989
Common GrackleIcteridae262024-66%1989
Common YellowthroatParulidae262024+7%1989
Eastern TowheePasserellidae212024+73%1989
Barn SwallowHirundinidae182024-12%1989
Yellow WarblerParulidae182024+46%1989
Northern CardinalCardinalidae172024+61%1989
Indigo BuntingCardinalidae172024-2%1989
Scarlet TanagerCardinalidae172024+225%1990
Mourning DoveColumbidae162024+24%1989
American GoldfinchFringillidae162024+83%1989
Black-capped ChickadeeParidae162024+57%1989
Tufted TitmouseParidae162024+246%1991
Blue JayCorvidae132024+100%1989
Eastern PhoebeTyrannidae122024+100%1989
Cedar WaxwingBombycillidae102024+48%1989
Rock PigeonColumbidae92024+53%1996
BobolinkIcteridae82024+163%1989
Red-bellied WoodpeckerPicidae82024+525%1998
Eastern Wood-PeweeTyrannidae72024+8%1989
KilldeerCharadriidae62024-7%1989
Eastern MeadowlarkIcteridae62024-23%1989
Field SparrowPasserellidae62024-39%1989
Hooded WarblerParulidae62024+325%1991
House SparrowPasseridae62024-56%1989
Wood ThrushTurdidae62024-25%1989
Northern BobwhiteOdontophoridae61995n/an/a
Turkey VultureCathartidae62024+175%1997
Brown ThrasherMimidae52024+20%1989
White-breasted NuthatchSittidae52024+333%1989
Black-throated Green WarblerParulidae52024+38%1995

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