New World Warblers in Delaware
Our list for Delaware has 19 new world warblers recorded regularly there: 4 summer visitors, 2 winter visitors and 13 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Delaware in October, 2019–2024. Each month links to that month’s page.
All 19, most common first
Yellow-rumped WarblerSetophaga coronataWinter visitorCommon12–15 cmRegularly Sep–May
Common YellowthroatGeothlypis trichasSummer visitorCommon11–13 cmRegularly Apr–Oct
American RedstartSetophaga ruticillaPassage migrantCommon11–14 cmRegularly May–Oct
Northern Yellow WarblerSetophaga aestivaSummer visitorCommon12–13 cmRegularly Apr–Sep
OvenbirdSeiurus aurocapillaSummer visitorCommon12–15 cmRegularly Apr–Sep
Magnolia WarblerSetophaga magnoliaPassage migrantCommon11–13 cmRegularly May–Oct
Palm WarblerSetophaga palmarumPassage migrantCommon12–14 cmRegularly Sep–Apr
Blackpoll WarblerSetophaga striataPassage migrantUncommon13–15 cmRegularly May–Oct
Chestnut-sided WarblerSetophaga pensylvanicaPassage migrantUncommon10–14 cmRegularly May–Oct
Black-throated Green WarblerSetophaga virensPassage migrantUncommon11–12 cmRegularly Apr–Oct
Black-throated Blue WarblerSetophaga caerulescensPassage migrantUncommon11–13 cmRegularly Apr–Oct
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly May–Oct
Northern WaterthrushParkesia noveboracensisPassage migrantUncommon12–15 cmRegularly Apr–Oct
Prothonotary WarblerProtonotaria citreaSummer visitorUncommon13–14 cmRegularly Apr–Aug
Tennessee WarblerLeiothlypis peregrinaPassage migrantUncommon10–13 cmRegularly May–Oct
Bay-breasted WarblerSetophaga castaneaPassage migrantUncommon14–14 cmRegularly May–Oct
Nashville WarblerLeiothlypis ruficapillaPassage migrantUncommon11–13 cmRegularly Apr–Oct
Orange-crowned WarblerLeiothlypis celataWinter visitorUncommon11–14 cmRegularly Oct–Apr
Mourning WarblerGeothlypis philadelphiaPassage migrantRare10–15 cmRegularly May–Oct
Smallest to largest
Length, cm- Black-throated Green Warbler 11–12 cm
- Tennessee Warbler 10–13 cm
- Common Yellowthroat 11–13 cm
- Magnolia Warbler 11–13 cm
- Chestnut-sided Warbler 10–14 cm
- Black-throated Blue Warbler 11–13 cm
- Nashville Warbler 11–13 cm
- American Redstart 11–14 cm
- Northern Yellow Warbler 12–13 cm
- Orange-crowned Warbler 11–14 cm
- Mourning Warbler 10–15 cm
- Palm Warbler 12–14 cm
- Cape May Warbler 12–14 cm
- Yellow-rumped Warbler 12–15 cm
- Ovenbird 12–15 cm
- Northern Waterthrush 12–15 cm
- Prothonotary Warbler 13–14 cm
- Blackpoll Warbler 13–15 cm
- Bay-breasted Warbler 14–14 cm
Body length, bill to tail. Rare birds in grey.
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