BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Normalville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 8 survey years, no longer active.

81Species 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 →
8Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–1974Span
2Observers

Bird Species Found on Pennsylvania Normalville

Top 40 of 81 species by most recent count. Each links to its species trend.

Species recorded on the Normalville 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 StarlingSturnidae1251974+337%1968
American RobinTurdidae1101974+42%1968
Barn SwallowHirundinidae621974+136%1968
Red-winged BlackbirdIcteridae511974-22%1968
Common GrackleIcteridae491974+445%1968
House SparrowPasseridae481974+2%1968
Song SparrowPasserellidae441974+35%1968
Eastern TowheePasserellidae261974-20%1968
Chipping SparrowPasserellidae201974-6%1968
Northern CardinalCardinalidae201974-19%1968
Common YellowthroatParulidae161974+3%1968
Mourning DoveColumbidae151974+338%1968
Northern House WrenTroglodytidae141974+17%1968
Eastern MeadowlarkIcteridae121974-19%1968
American CrowCorvidae111974-51%1968
Gray CatbirdMimidae101974-36%1968
American GoldfinchFringillidae91974-7%1968
Brown-headed CowbirdIcteridae81973+20%1968
Chimney SwiftApodidae71974+567%1967
Field SparrowPasserellidae71974-2%1968
Kentucky WarblerParulidae71970+120%1967
VeeryTurdidae71974+0%1972
Indigo BuntingCardinalidae61973+22%1968
Red-eyed VireoVireonidae61974-79%1968
American RedstartParulidae61970+40%1967
Hooded WarblerParulidae51970+80%1967
Brown ThrasherMimidae51974+100%1968
Carolina WrenTroglodytidae51974n/an/a
Turkey VultureCathartidae41973+350%1970
Vesper SparrowPasserellidae41970+100%1967
Wood ThrushTurdidae41974-70%1968
Purple MartinHirundinidae41972+0%1969
Horned LarkAlaudidae31967+200%1966
Blue JayCorvidae31970+400%1967
Grasshopper SparrowPasserellidae31969+0%1967
Cedar WaxwingBombycillidae31973+44%1968
Black-and-white WarblerParulidae31970+20%1967
Northern ParulaParulidae31970+0%1967
OvenbirdParulidae31970-58%1967
Yellow-breasted ChatIcteriidae31973+0%1968

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