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 · OctShare of all bird records in Connecticut in October, 2019–2024. Each month links to that month’s page.
All 83, most common first
Sharp-shinned HawkAccipiter striatusWinter visitorUncommon24–34 cmRegularly Aug–May
Eurasian TealAnas creccaWinter visitorUncommon34–38 cmRegularly Aug–Apr
Red-throated LoonGavia stellataWinter visitorUncommon53–69 cmRegularly Oct–Apr
Black-throated Green WarblerSetophaga virensSummer visitorUncommon11–12 cmRegularly Apr–Oct
Surf ScoterMelanitta perspicillataWinter visitorUncommon48–60 cmRegularly Oct–Apr
Greater ScaupAythya marilaWinter visitorUncommon39–56 cmRegularly Nov–Apr
Magnolia WarblerSetophaga magnoliaSummer visitorUncommon11–13 cmRegularly May–Oct
WilletTringa semipalmataSummer visitorUncommon33–41 cmRegularly Apr–Sep
Lesser YellowlegsTringa flavipesPassage migrantUncommon23–27 cmRegularly Mar–Oct
White-crowned SparrowZonotrichia leucophrysWinter visitorUncommon15–16 cmRegularly Sep–May
Grey PloverPluvialis squatarolaSummer visitorUncommon27–30 cmRegularly Apr–Feb
Hermit ThrushCatharus guttatusResidentUncommon14–18 cmRecorded all year
Chestnut-sided WarblerSetophaga pensylvanicaSummer visitorUncommon10–14 cmRegularly May–Sep
Blue-headed VireoVireo solitariusSummer visitorUncommon12–15 cmRegularly Apr–Nov
Wild TurkeyMeleagris gallopavoResidentUncommon100–125 cmRecorded all year
Black-throated Blue WarblerSetophaga caerulescensSummer visitorUncommon11–13 cmRegularly Apr–Oct
Horned LarkEremophila alpestrisWinter visitorUncommon16–20 cmRegularly Oct–Mar
EiderSomateria mollissimaWinter visitorUncommon50–71 cmRegularly Jun–Apr
Marsh WrenCistothorus palustrisSummer visitorUncommon10–14 cmRegularly Apr–Feb
Ruddy TurnstoneArenaria interpresSummer visitorUncommon21–24 cmRecorded all year
Pine SiskinSpinus pinusWinter visitorUncommon11–14 cmRegularly Oct–May
Northern WaterthrushParkesia noveboracensisSummer visitorUncommon12–15 cmRegularly Apr–Sep
Ruddy DuckOxyura jamaicensisWinter visitorUncommon35–43 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