Uncommon Birds in Delaware
Our list for Delaware has 81 uncommon birds recorded regularly there: 5 residents, 15 summer visitors, 29 winter visitors, 30 passage migrants and 2 scarce visitors
Most likely in October
GBIF · Oct
Share of all bird records in Delaware in October, 2019–2024. Each month links to that month’s page.
All 81, most common first
American Tree SparrowSpizelloides arboreaWinter visitorUncommon14–17 cmRegularly Nov–Mar
Orange-crowned WarblerLeiothlypis celataWinter visitorUncommon11–14 cmRegularly Oct–Apr
Philadelphia VireoVireo philadelphicusPassage migrantUncommon11–13 cmRegularly Sep–Oct
Ross's GooseAnser rossiiWinter visitorUncommon57–64 cmRegularly Nov–Mar
Gull-billed TernGelochelidon niloticaPassage migrantUncommon33–42 cmRegularly Jun–Aug
Lark SparrowChondestes grammacusWinter visitorUncommon15–17 cmRegularly Sep–Feb
Golden EagleAquila chrysaetosPassage migrantUncommon66–102 cmRegularly Oct–Nov
Wilson's PhalaropePhalaropus tricolorSummer visitorUncommon22–24 cmRegularly May–Sep
Cackling GooseBranta hutchinsiiWinter visitorUncommon53–76 cmRegularly Oct–Mar
Pink-footed GooseAnser brachyrhynchusPassage migrantUncommon60–75 cmRegularly Jan–Mar
Curlew SandpiperCalidris ferrugineaScarceUncommon18–23 cm
DickcisselSpiza americanaSummer visitorUncommon14–16 cmRegularly May–Oct
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