BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Sproul Sf-B Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 74 species recorded across 23 survey years, still active.

74Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2002–2025Span
1Observers

Bird Species Found on Pennsylvania Sproul Sf-B

Top 40 of 74 species by most recent count. Each links to its species trend.

Species recorded on the Sproul Sf-B 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
OvenbirdParulidae782025+160%2004
Eastern TowheePasserellidae502025+16%2004
Red-eyed VireoVireonidae352025-13%2004
Common YellowthroatParulidae272025-8%2004
Yellow-billed CuckooCuculidae182023+467%2005
Chipping SparrowPasserellidae102025+5%2004
Chestnut-sided WarblerParulidae92025-38%2004
Scarlet TanagerCardinalidae82025+0%2004
Blue JayCorvidae72024+114%2004
Field SparrowPasserellidae62024+50%2004
Indigo BuntingCardinalidae62025-21%2004
Black-throated Green WarblerParulidae52025-45%2004
Black-capped ChickadeeParidae52025-22%2004
Black-billed CuckooCuculidae52023+125%2007
Least FlycatcherTyrannidae42024-48%2004
Hermit ThrushTurdidae42025-32%2004
American RobinTurdidae42025-40%2004
Wild TurkeyPhasianidae42023+100%2009
Eastern Wood-PeweeTyrannidae32025+5%2004
Blue-headed VireoVireonidae32025+60%2004
Black-and-white WarblerParulidae32025-44%2004
Mourning DoveColumbidae32024+33%2005
Hooded WarblerParulidae32025+167%2013
American CrowCorvidae22024+25%2004
American GoldfinchFringillidae22025-50%2004
Rose-breasted GrosbeakCardinalidae22025-50%2004
Cedar WaxwingBombycillidae22025-68%2004
Worm-eating WarblerParulidae22022+33%2006
Black-throated Blue WarblerParulidae22025+0%2004
Blackburnian WarblerParulidae22025-63%2005
American RedstartParulidae22025-86%2004
Wood ThrushTurdidae22025-29%2004
Cerulean WarblerParulidae22015-29%2005
Turkey VultureCathartidae22025+0%2010
Pine WarblerParulidae22022+0%2016
Chimney SwiftApodidae22024n/an/a
Broad-winged HawkAccipitridae12025-25%2006
Pileated WoodpeckerPicidae12025+167%2005
Great Crested FlycatcherTyrannidae12023-43%2006
Common RavenCorvidae12024-55%2004

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