Rare Birds in Pennsylvania
Our list for Pennsylvania has 75 rare birds recorded regularly there: 8 residents, 13 summer visitors, 19 winter visitors, 31 passage migrants and 4 scarce visitors
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 75, most common first
Ross's GooseAnser rossiiWinter visitorRare57–64 cmRegularly Nov–Mar
Baird's SandpiperCalidris bairdiiPassage migrantRare14–17 cmRegularly Aug–Sep
Black TernChlidonias nigerSummer visitorRare22–26 cmRegularly May–Sep
Trumpeter SwanCygnus buccinatorResidentRare139–157 cmRecorded all year
Red-necked GrebePodiceps grisegenaWinter visitorRare40–50 cmRegularly Oct–Apr
Glossy IbisPlegadis falcinellusSummer visitorRare48–66 cmRegularly Apr–Sep
White-rumped SandpiperCalidris fuscicollisPassage migrantRare15–18 cmRegularly May–Nov
DickcisselSpiza americanaSummer visitorRare14–16 cmRegularly May–Feb
Snowy OwlBubo scandiacusWinter visitorRare52–71 cmRegularly Dec–Apr
Barnacle GooseBranta leucopsisPassage migrantRare58–70 cmRegularly Dec–Jan
Cattle EgretArdea ibisPassage migrantRare46–56 cmRegularly Apr–Nov
Common TernSterna hirundoSummer visitorRare31–35 cmRegularly Apr–Nov
Say's PhoebeSayornis sayaPassage migrantRare17–20 cmRegularly Nov–Dec
Eurasian WigeonMareca penelopePassage migrantRare42–51 cmRegularly Feb–Apr
Glaucous GullLarus hyperboreusWinter visitorRare62–68 cmRegularly Dec–Mar
Pink-footed GooseAnser brachyrhynchusPassage migrantRare60–75 cmRegularly Dec–Jan
American AvocetRecurvirostra americanaSummer visitorRare43–51 cmRegularly Apr–Oct
Eurasian Collared DoveStreptopelia decaoctoResidentRare30–32 cmRecorded all year
Brent GooseBranta berniclaPassage migrantRare55–66 cmRegularly May–Dec
Muscovy DuckCairina moschataWinter visitorRare66–84 cmRecorded all year
Red-necked PhalaropePhalaropus lobatusPassage migrantRare18–19 cmRegularly May–Oct
Lark SparrowChondestes grammacusPassage migrantRare15–17 cmRegularly Aug–Sep
Long-billed DowitcherLimnodromus scolopaceusPassage migrantRare27–30 cmRegularly May–Nov
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