Uncommon Birds in Pennsylvania
Our list for Pennsylvania has 72 uncommon birds recorded regularly there: 7 residents, 18 summer visitors, 31 winter visitors and 16 passage migrants
Most likely in October
GBIF · Oct
Share of all bird records in Pennsylvania in October, 2019–2024. Each month links to that month’s page.
All 72, most common first
Northern ShovelerSpatula clypeataWinter visitorUncommon44–51 cmRegularly Sep–Apr
White-crowned SparrowZonotrichia leucophrysWinter visitorUncommon15–16 cmRegularly Oct–May
Tundra SwanCygnus columbianusWinter visitorUncommon120–150 cmRegularly Nov–Apr
Blackpoll WarblerSetophaga striataPassage migrantUncommon13–15 cmRegularly May–Oct
Horned LarkEremophila alpestrisWinter visitorUncommon16–20 cmRecorded all year
Wild TurkeyMeleagris gallopavoResidentUncommon100–125 cmRecorded all year
Horned GrebePodiceps auritusWinter visitorUncommon31–38 cmRegularly Oct–Apr
GoldeneyeBucephala clangulaWinter visitorUncommon40–51 cmRegularly Nov–Apr
Red-breasted MerganserMergus serratorWinter visitorUncommon52–58 cmRegularly Oct–May
Common LoonGavia immerWinter visitorUncommon66–91 cmRegularly Oct–May
Nashville WarblerLeiothlypis ruficapillaPassage migrantUncommon11–13 cmRegularly Apr–Oct
Lincoln's SparrowMelospiza lincolniiPassage migrantUncommon13–15 cmRegularly May–Oct
Northern PintailAnas acutaWinter visitorUncommon59–76 cmRegularly Sep–Apr
Great Black-backed GullLarus marinusWinter visitorUncommon64–79 cmRegularly Jul–Apr
Northern WaterthrushParkesia noveboracensisSummer visitorUncommon12–15 cmRegularly Apr–Sep
Semipalmated SandpiperCalidris pusillaSummer visitorUncommon15–18 cmRegularly May–Oct
Great Horned OwlBubo virginianusWinter visitorUncommon46–63 cmRecorded all year
Mute SwanCygnus olorResidentUncommon140–160 cmRecorded all year
MerlinFalco columbariusWinter visitorUncommon24–33 cmRecorded all year
Eastern Screech-owlMegascops asioWinter visitorUncommon16–25 cmRecorded all year
Lesser Black-backed GullLarus fuscusWinter visitorUncommon52–64 cmRegularly Sep–Apr
Least FlycatcherEmpidonax minimusSummer visitorUncommon12–14 cmRegularly May–Sep
Greater ScaupAythya marilaWinter visitorUncommon39–56 cmRegularly Oct–Apr
Data: EOD – eBird Observation Dataset (Cornell Lab of Ornithology), accessed via GBIF.org, CC BY 4.0. Records from 2019–2024, aggregated and filtered by Birdfact. How these lists are made