BirdAnalyst
BBS Route · Pennsylvania · BCR 13

Sugar Grove Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 32 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2025Span
4Observers

Bird Species Found on Pennsylvania Sugar Grove

Top 40 of 116 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 StarlingSturnidae2192025+555%1982
American RobinTurdidae972025+24%1982
Red-winged BlackbirdIcteridae912025-22%1982
Song SparrowPasserellidae612025+36%1982
American CrowCorvidae522025+91%1982
Gray CatbirdMimidae522025+167%1982
Rock PigeonColumbidae38202512×1995
Barn SwallowHirundinidae382025+134%1982
Common YellowthroatParulidae352025+3%1982
Mourning DoveColumbidae332025+142%1982
Northern CardinalCardinalidae332025+490%1982
Common GrackleIcteridae312025+30%1982
American GoldfinchFringillidae312025+107%1982
Red-eyed VireoVireonidae232025+64%1982
Purple MartinHirundinidae20202528×2004
Ring-billed GullLaridae192025+533%2015
Eastern Wood-PeweeTyrannidae162025+172%1982
Chipping SparrowPasserellidae162025-45%1982
Chestnut-sided WarblerParulidae152025+438%1983
Yellow WarblerParulidae102025-66%1982
Cedar WaxwingBombycillidae92025+23%1982
Eastern TowheePasserellidae82025+133%1982
Northern House WrenTroglodytidae82025-32%1982
Eastern BluebirdTurdidae82025+200%1983
VeeryTurdidae82025+250%1984
Hooded WarblerParulidae72025+260%1983
American RedstartParulidae72025-31%1982
Black-capped ChickadeeParidae72025+317%1982
Eastern PhoebeTyrannidae72025+143%1983
Red-bellied WoodpeckerPicidae72025+200%2002
Brown-headed CowbirdIcteridae62025+47%1982
House FinchFringillidae62025+100%1995
Yellow-bellied SapsuckerPicidae62025+250%2001
Least FlycatcherTyrannidae52025-8%1982
Blue JayCorvidae52025+30%1982
Wood ThrushTurdidae52025-42%1982
Belted KingfisherAlcedinidae42023+60%2000
Eastern MeadowlarkIcteridae42025-85%1982
Savannah SparrowPasserellidae42025-59%1982
Field SparrowPasserellidae42025-63%1982

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