Uncommon Birds in Connecticut
Our list for Connecticut has 83 uncommon birds recorded regularly there: 6 residents, 23 summer visitors, 33 winter visitors and 21 passage migrants
Most likely in October
GBIF · Oct
Share of all bird records in Connecticut in October, 2019–2024. Each month links to that month’s page.
All 83, most common first
Northern PintailAnas acutaWinter visitorUncommon59–76 cmRegularly Sep–Apr
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly May–Jan
Northern ShovelerSpatula clypeataWinter visitorUncommon44–51 cmRegularly Sep–Apr
Pectoral SandpiperCalidris melanotosPassage migrantUncommon19–23 cmRegularly Mar–Nov
Tennessee WarblerLeiothlypis peregrinaPassage migrantUncommon10–13 cmRegularly May–Jan
Vesper SparrowPooecetes gramineusWinter visitorUncommon13–17 cmRegularly Oct–Apr
Nashville WarblerLeiothlypis ruficapillaPassage migrantUncommon11–13 cmRegularly Apr–Jan
Iceland GullLarus glaucoidesWinter visitorUncommon52–60 cmRegularly Nov–Apr
RazorbillAlca tordaWinter visitorUncommon38–43 cmRegularly Dec–Mar
Snow GooseAnser caerulescensWinter visitorUncommon69–84 cmRegularly Oct–Apr
Forster's TernSterna forsteriPassage migrantUncommon33–36 cmRegularly Jul–Nov
American Golden-PloverPluvialis dominicaPassage migrantUncommon24–28 cmRegularly Aug–Oct
Lapland LongspurCalcarius lapponicusWinter visitorUncommon15–16 cmRegularly Sep–Apr
Bay-breasted WarblerSetophaga castaneaPassage migrantUncommon14–14 cmRegularly May–Oct
Alder FlycatcherEmpidonax alnorumSummer visitorUncommon13–17 cmRegularly May–Sep
Lesser Black-backed GullLarus fuscusWinter visitorUncommon52–64 cmRegularly Sep–Apr
Baird's SandpiperCalidris bairdiiPassage migrantUncommon14–17 cmRegularly Aug–Sep
Greater White-fronted GooseAnser albifronsWinter visitorUncommon64–81 cmRegularly Oct–Mar
Philadelphia VireoVireo philadelphicusPassage migrantUncommon11–13 cmRegularly Aug–Oct
Roseate TernSterna dougalliiSummer visitorUncommon33–41 cmRegularly May–Aug
Stilt SandpiperCalidris himantopusPassage migrantUncommon18–23 cmRegularly Jul–Oct
Virginia RailRallus limicolaSummer visitorUncommon20–27 cmRecorded all year
Purple SandpiperCalidris maritimaWinter visitorUncommon20–22 cmRegularly Nov–May
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