New World Warblers in Montana
Our list for Montana has 18 new world warblers recorded regularly there: 9 summer visitors and 9 passage migrants
Most likely in October
GBIF · OctShare of all bird records in Montana in October, 2019–2024. Each month links to that month’s page.
All 18, most common first
Northern Yellow WarblerSetophaga aestivaSummer visitorCommon12–13 cmRegularly May–Sep
Yellow-rumped WarblerSetophaga coronataSummer visitorCommon12–15 cmRegularly Apr–Oct
Common YellowthroatGeothlypis trichasSummer visitorCommon11–13 cmRegularly May–Oct
Orange-crowned WarblerLeiothlypis celataSummer visitorCommon11–14 cmRegularly Apr–Oct
American RedstartSetophaga ruticillaSummer visitorUncommon11–14 cmRegularly May–Sep
Northern WaterthrushParkesia noveboracensisSummer visitorUncommon12–15 cmRegularly May–Sep
Nashville WarblerLeiothlypis ruficapillaSummer visitorUncommon11–13 cmRegularly Apr–Oct
OvenbirdSeiurus aurocapillaSummer visitorUncommon12–15 cmRegularly May–Sep
Tennessee WarblerLeiothlypis peregrinaSummer visitorUncommon10–13 cmRegularly May–Oct
Blackpoll WarblerSetophaga striataPassage migrantRare13–15 cmRegularly May–Sep
Chestnut-sided WarblerSetophaga pensylvanicaPassage migrantRare10–14 cmRegularly May–Sep
Black-throated Blue WarblerSetophaga caerulescensPassage migrantRare11–13 cmRegularly Sep
Magnolia WarblerSetophaga magnoliaPassage migrantRare11–13 cmRegularly May–Oct
Palm WarblerSetophaga palmarumPassage migrantRare12–14 cmRegularly May–Oct
Bay-breasted WarblerSetophaga castaneaPassage migrantRare14–14 cmRegularly May–Sep
Cape May WarblerSetophaga tigrinaPassage migrantRare12–14 cmRegularly May–Sep
Mourning WarblerGeothlypis philadelphiaPassage migrantRare10–15 cmRegularly May–Sep
Black-throated Green WarblerSetophaga virensPassage migrantRare11–12 cmRegularly May–Sep
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
- Chestnut-sided Warbler 10–14 cm
- Black-throated Blue Warbler 11–13 cm
- Magnolia Warbler 11–13 cm
- Northern Yellow Warbler 12–13 cm
- Orange-crowned Warbler 11–14 cm
- American Redstart 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
- Northern Waterthrush 12–15 cm
- Ovenbird 12–15 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