Rare Birds in Wisconsin
Our list for Wisconsin has 48 rare birds recorded regularly there: 5 residents, 14 summer visitors, 7 winter visitors, 21 passage migrants and 1 scarce visitor
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 48, most common first
Northern Saw-whet OwlAegolius acadicusWinter visitorRare17–21 cmRegularly Sep–Jun
Wilson's PhalaropePhalaropus tricolorSummer visitorRare22–24 cmRegularly Apr–Aug
Ross's GooseAnser rossiiWinter visitorRare57–64 cmRegularly Oct–Apr
Yellow-bellied FlycatcherEmpidonax flaviventrisSummer visitorRare13–15 cmRegularly May–Sep
Long-billed DowitcherLimnodromus scolopaceusPassage migrantRare27–30 cmRegularly Apr–Nov
Red-necked GrebePodiceps grisegenaSummer visitorRare40–50 cmRegularly Apr–Jan
Red-throated LoonGavia stellataWinter visitorRare53–69 cmRegularly Oct–May
Ruddy TurnstoneArenaria interpresSummer visitorRare21–24 cmRegularly May–Nov
Lark SparrowChondestes grammacusSummer visitorRare15–17 cmRegularly Apr–Aug
Buff-breasted SandpiperCalidris subruficollisPassage migrantRare18–20 cmRegularly Aug–Oct
Purple SandpiperCalidris maritimaPassage migrantRare20–22 cmRegularly Dec
Upland SandpiperBartramia longicaudaSummer visitorRare28–32 cmRegularly Apr–Aug
Arctic JaegerStercorarius parasiticusPassage migrantRare41–46 cmRegularly Sep–Nov
White-rumped SandpiperCalidris fuscicollisPassage migrantRare15–18 cmRegularly May–Nov
Tufted DuckAythya fuligulaScarceRare40–47 cm
Red-necked PhalaropePhalaropus lobatusPassage migrantRare18–19 cmRegularly May–Sep
Western MeadowlarkSturnella neglectaResidentRare16–26 cmRegularly Oct–Aug
Varied ThrushIxoreus naeviusWinter visitorRare20–26 cmRegularly Dec–Mar
Sabine's GullXema sabiniPassage migrantRare27–33 cmRegularly Sep–Oct
Great TitParus majorWinter visitorRareRegularly Sep–Jun
American AvocetRecurvirostra americanaSummer visitorRare43–51 cmRegularly Apr–Nov
Greylag GooseAnser anserWinter visitorRare75–90 cmRecorded all year
WilletTringa semipalmataSummer visitorRare33–41 cmRegularly Apr–Aug
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