Uncommon Birds in Wisconsin
Our list for Wisconsin has 79 uncommon birds recorded regularly there: 7 residents, 28 summer visitors, 23 winter visitors and 21 passage migrants
Most likely in October
GBIF · Oct
Share of all bird records in Wisconsin in October, 2019–2024. Each month links to that month’s page.
All 79, most common first
Bonaparte's GullChroicocephalus philadelphiaSummer visitorUncommon28–38 cmRegularly Mar–Nov
Red-headed WoodpeckerMelanerpes erythrocephalusResidentUncommon19–23 cmRecorded all year
Snow BuntingPlectrophenax nivalisWinter visitorUncommon15–18 cmRegularly Oct–Mar
Alder FlycatcherEmpidonax alnorumSummer visitorUncommon13–17 cmRegularly May–Aug
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly May–Sep
Snowy OwlBubo scandiacusWinter visitorUncommon52–71 cmRegularly Nov–Mar
Semipalmated SandpiperCalidris pusillaSummer visitorUncommon15–18 cmRegularly May–Sep
Black TernChlidonias nigerSummer visitorUncommon22–26 cmRegularly May–Aug
MerlinFalco columbariusResidentUncommon24–33 cmRecorded all year
Orange-crowned WarblerLeiothlypis celataPassage migrantUncommon11–14 cmRegularly Apr–Nov
Pectoral SandpiperCalidris melanotosPassage migrantUncommon19–23 cmRegularly Apr–Nov
Mourning WarblerGeothlypis philadelphiaSummer visitorUncommon10–15 cmRegularly May–Sep
Barred OwlStrix variaResidentUncommon43–50 cmRecorded all year
Blue-headed VireoVireo solitariusSummer visitorUncommon12–15 cmRegularly Apr–Oct
Gray-cheeked ThrushCatharus minimusPassage migrantUncommon16–17 cmRegularly May–Oct
Sand MartinRiparia ripariaSummer visitorUncommon12–14 cmRegularly Apr–Sep
Broad-winged HawkButeo platypterusSummer visitorUncommon34–44 cmRegularly Apr–Oct
Semipalmated PloverCharadrius semipalmatusSummer visitorUncommon17–19 cmRegularly May–Oct
Great Black-backed GullLarus marinusWinter visitorUncommon64–79 cmRegularly Nov–Apr
Cackling GooseBranta hutchinsiiWinter visitorUncommon53–76 cmRegularly Sep–Apr
Black-billed CuckooCoccyzus erythropthalmusSummer visitorUncommon28–32 cmRegularly May–Sep
Long-tailed DuckClangula hyemalisWinter visitorUncommon37–60 cmRegularly Oct–Apr
Sharp-shinned HawkAccipiter striatusWinter visitorUncommon24–34 cmRecorded all year
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