Rare Birds in Connecticut
Our list for Connecticut has 46 rare birds recorded regularly there: 4 residents, 5 summer visitors, 10 winter visitors, 22 passage migrants and 5 scarce visitors
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 46, most common first
WhimbrelNumenius phaeopusSummer visitorRare40–46 cmRegularly May–Oct
Eastern Screech-owlMegascops asioResidentRare16–25 cmRecorded all year
Pink-footed GooseAnser brachyrhynchusPassage migrantRare60–75 cmRegularly Nov–Dec
Evening GrosbeakHesperiphona vespertinaPassage migrantRare16–22 cmRegularly Oct–Jan
Red-headed WoodpeckerMelanerpes erythrocephalusWinter visitorRare19–23 cmRegularly Sep–May
Red CrossbillLoxia curvirostraPassage migrantRare15–17 cmRegularly Apr–Jan
Western KingbirdTyrannus verticalisPassage migrantRare20–24 cmRegularly Nov
Snowy OwlBubo scandiacusPassage migrantRare52–71 cmRegularly Nov–Jan
Western SandpiperCalidris mauriPassage migrantRare14–17 cmRegularly Jul–Sep
Tundra SwanCygnus columbianusWinter visitorRare120–150 cmRegularly Dec–Mar
Common PheasantPhasianus colchicusWinter visitorRare50–90 cmRegularly Oct–Jun
Tufted DuckAythya fuligulaWinter visitorRare40–47 cmRegularly Dec–Mar
Northern Saw-whet OwlAegolius acadicusWinter visitorRare17–21 cmRegularly Oct–Apr
Golden EagleAquila chrysaetosPassage migrantRare66–102 cmRegularly Oct–Feb
Marbled GodwitLimosa fedoaPassage migrantRare40–50 cmRegularly Aug–Sep
Cackling GooseBranta hutchinsiiWinter visitorRare53–76 cmRegularly Oct–Mar
Yellow-bellied FlycatcherEmpidonax flaviventrisPassage migrantRare13–15 cmRegularly May–Oct
Gray-cheeked ThrushCatharus minimusPassage migrantRare16–17 cmRegularly May–Oct
Red KnotCalidris canutusSummer visitorRare23–26 cmRegularly May–Oct
Hudsonian GodwitLimosa haemasticaPassage migrantRare36–42 cmRegularly Aug–Nov
Black TernChlidonias nigerSummer visitorRare22–26 cmRegularly May–Sep
Red-necked GrebePodiceps grisegenaWinter visitorRare40–50 cmRegularly Oct–May
Black-necked GrebePodiceps nigricollisPassage migrantRare28–34 cmRegularly Jan–Feb
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