BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Arnot Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 124 species recorded across 53 survey years, still active.

124Species 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 →
53Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
7Observers

Bird Species Found on Pennsylvania Arnot

Top 40 of 124 species by most recent count. Each links to its species trend.

Species recorded on the Arnot 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 StarlingSturnidae2272025+117%1971
American CrowCorvidae872025+454%1971
Red-winged BlackbirdIcteridae802025+47%1971
American RobinTurdidae722025+49%1971
BobolinkIcteridae602025+660%1971
Song SparrowPasserellidae412025+164%1971
Mourning DoveColumbidae412025+773%1973
OvenbirdParulidae352025+850%1971
Rock PigeonColumbidae332025+36%1973
Common YellowthroatParulidae332025+233%1971
Barn SwallowHirundinidae222025+56%1971
Red-eyed VireoVireonidae202025+63%1971
Canada GooseAnatidae202025+244%1996
Yellow WarblerParulidae182025+236%1971
Gray CatbirdMimidae182025+292%1972
American GoldfinchFringillidae172025+162%1971
Chipping SparrowPasserellidae172025+108%1971
Turkey VultureCathartidae17202520×1977
Cedar WaxwingBombycillidae162025+600%1972
Blue JayCorvidae142025+486%1971
Indigo BuntingCardinalidae142025+300%1972
Common RavenCorvidae132025+240%1991
Brown-headed CowbirdIcteridae112025-21%1972
Black-capped ChickadeeParidae112025+640%1972
Red-bellied WoodpeckerPicidae112025+375%2003
Savannah SparrowPasserellidae102025+113%1972
Northern House WrenTroglodytidae102025-11%1971
Double-crested CormorantPhalacrocoracidae102012+900%2000
Eastern MeadowlarkIcteridae92025-41%1971
Northern CardinalCardinalidae92025+200%1971
Chestnut-sided WarblerParulidae92025+475%1972
Tufted TitmouseParidae92025+450%1990
Chimney SwiftApodidae72025+21%1971
Eastern PhoebeTyrannidae72025+29%1972
Wild TurkeyPhasianidae72025+29%1990
Eastern TowheePasserellidae62025+50%1971
Pileated WoodpeckerPicidae62025+200%1994
MallardAnatidae62024-10%1986
Eastern Wood-PeweeTyrannidae52025+500%1971
Least FlycatcherTyrannidae52025+75%1971

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