New World Warblers in Iowa
Our list for Iowa has 19 new world warblers recorded regularly there: 5 summer visitors and 14 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Iowa in October, 2019–2024. Each month links to that month’s page.
All 19, most common first
Common YellowthroatGeothlypis trichasSummer visitorCommon11–13 cmRegularly May–Oct
Yellow-rumped WarblerSetophaga coronataPassage migrantCommon12–15 cmRegularly Apr–Dec
Northern Yellow WarblerSetophaga aestivaSummer visitorCommon12–13 cmRegularly Apr–Sep
American RedstartSetophaga ruticillaSummer visitorCommon11–14 cmRegularly May–Sep
Nashville WarblerLeiothlypis ruficapillaPassage migrantCommon11–13 cmRegularly May–Oct
Tennessee WarblerLeiothlypis peregrinaPassage migrantCommon10–13 cmRegularly May–Oct
Magnolia WarblerSetophaga magnoliaPassage migrantCommon11–13 cmRegularly May–Oct
Orange-crowned WarblerLeiothlypis celataPassage migrantCommon11–14 cmRegularly Apr–Oct
Chestnut-sided WarblerSetophaga pensylvanicaPassage migrantCommon10–14 cmRegularly May–Sep
Bay-breasted WarblerSetophaga castaneaPassage migrantUncommon14–14 cmRegularly May–Sep
Palm WarblerSetophaga palmarumPassage migrantUncommon12–14 cmRegularly Apr–Oct
Black-throated Green WarblerSetophaga virensPassage migrantUncommon11–12 cmRegularly May–Oct
OvenbirdSeiurus aurocapillaSummer visitorUncommon12–15 cmRegularly Apr–Sep
Northern WaterthrushParkesia noveboracensisPassage migrantUncommon12–15 cmRegularly Apr–Sep
Blackpoll WarblerSetophaga striataPassage migrantUncommon13–15 cmRegularly May
Prothonotary WarblerProtonotaria citreaSummer visitorUncommon13–14 cmRegularly Apr–Aug
Mourning WarblerGeothlypis philadelphiaPassage migrantUncommon10–15 cmRegularly May–Sep
Cape May WarblerSetophaga tigrinaPassage migrantUncommon12–14 cmRegularly May–Oct
Black-throated Blue WarblerSetophaga caerulescensPassage migrantRare11–13 cmRegularly May–Oct
Smallest to largest
Length, cm- Tennessee Warbler 10–13 cm
- Black-throated Green Warbler 11–12 cm
- Common Yellowthroat 11–13 cm
- Nashville Warbler 11–13 cm
- Magnolia Warbler 11–13 cm
- Chestnut-sided Warbler 10–14 cm
- Black-throated Blue Warbler 11–13 cm
- Northern Yellow Warbler 12–13 cm
- American Redstart 11–14 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
- Bay-breasted Warbler 14–14 cm
- Blackpoll Warbler 13–15 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