WhenToBird

Vermivora cyanoptera · Parulidae

Blue-winged Warbler: When and Where to See It

Adult Blue-winged Warbler
Photo: John Rosford, CC BY 4.0 via iNaturalist

The Blue-winged Warbler reaches Louisiana first, around late March, and Vermont last, around early May.

JanFebMarAprMayJunJulAugSepOctNovDec
today
Second week of November

Each county is shaded by the share of complete checklists there that listed the bird, blended with the weeks either side. Darker is more often. It follows where people watch birds, not how many birds there are. How to read it.

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0%1%2%3%4%Jan 1-7: 0.1% of 1114036 checklistsJan 8-14: 0.1% of 824708 checklistsJan 15-21: 0.1% of 825978 checklistsJan 22-31: 0.1% of 1105853 checklistsFeb 1-7: 0.1% of 779772 checklistsFeb 8-14: 0.1% of 864504 checklistsFeb 15-21: 0.1% of 1127933 checklistsFeb 22-28: 0.1% of 840124 checklistsMar 1-7: 0.1% of 839610 checklistsMar 8-14: 0.1% of 870138 checklistsMar 15-21: 0.1% of 898456 checklistsMar 22-31: 0.1% of 1335637 checklistsApr 1-7: 0.1% of 1030617 checklistsApr 8-14: 0.4% of 1124024 checklistsApr 15-21: 0.7% of 1194575 checklistsApr 22-30: 1.4% of 1675723 checklistsMay 1-7: 3.1% of 1449080 checklistsMay 8-14: 3.0% of 1538353 checklistsMay 15-21: 2.8% of 1219898 checklistsMay 22-31: 2.0% of 1452282 checklistsJun 1-7: 1.5% of 900636 checklistsJun 8-14: 1.2% of 829907 checklistsJun 15-21: 1.0% of 773255 checklistsJun 22-30: 0.6% of 916255 checklistsJul 1-7: 0.3% of 717733 checklistsJul 8-14: 0.2% of 658223 checklistsJul 15-21: 0.2% of 638752 checklistsJul 22-31: 0.2% of 895727 checklistsAug 1-7: 0.2% of 655651 checklistsAug 8-14: 0.3% of 650038 checklistsAug 15-21: 0.5% of 654639 checklistsAug 22-31: 0.8% of 974928 checklistsSep 1-7: 0.9% of 765914 checklistsSep 8-14: 0.7% of 738674 checklistsSep 15-21: 0.4% of 750433 checklistsSep 22-30: 0.2% of 944196 checklistsOct 1-7: 0.1% of 760106 checklistsOct 8-14: 0.1% of 793131 checklistsOct 15-21: 0.1% of 728727 checklistsOct 22-31: 0.1% of 959954 checklistsNov 1-7: 0.1% of 709464 checklistsNov 8-14: 0.1% of 693424 checklistsNov 15-21: 0.1% of 653952 checklistsNov 22-30: 0.1% of 871137 checklistsDec 1-7: 0.1% of 627591 checklistsDec 8-14: 0.1% of 642427 checklistsDec 15-21: 0.1% of 775638 checklistsDec 22-31: 0.1% of 1132751 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Share of complete checklists reporting it, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

Pooled across every state in the data, so it leans toward states with the most birders.

States, in order of first arrivals

StatePatternFirst arrivalsPeakMost gone byPeak %
LouisianaPasses throughMar 22-31Apr 15-21May 1-73.5%
TennesseePasses throughApr 1-7Apr 15-21Jun 1-73.7%
TexasPasses throughApr 1-7Apr 15-21May 1-73.3%
ArkansasPasses throughApr 1-7Apr 22-30Jun 8-141.8%
MississippiPasses throughApr 1-7Apr 15-21May 1-72.2%
MissouriPasses throughApr 8-14May 1-7Jun 22-306.2%
KentuckySummer visitorApr 8-14Apr 22-30Jun 15-213.5%
Rhode IslandPasses throughApr 15-21May 8-14Jun 8-1415%
ConnecticutPasses throughApr 15-21May 8-14Jun 15-2112%
District of ColumbiaPasses throughApr 15-21Apr 22-30May 8-146.1%
New JerseySummer visitorApr 15-21May 8-14Jun 22-306.4%
OhioPasses throughApr 15-21May 1-7Jun 8-145.3%
West VirginiaPasses throughApr 15-21May 1-7Jun 22-305.9%
IllinoisPasses throughApr 15-21May 8-14Jun 15-214.5%
IndianaPasses throughApr 15-21May 8-14Jun 22-304.6%
PennsylvaniaPasses throughApr 15-21May 8-14Jun 22-304.1%
VirginiaPasses throughApr 15-21May 1-7Jun 8-141.3%
New YorkSummer visitorApr 22-30May 8-14Jul 1-77.9%
MassachusettsPasses throughApr 22-30May 15-21Jun 8-146.5%
MichiganPasses throughApr 22-30May 8-14Jun 15-215.3%
WisconsinPasses throughApr 22-30May 15-21Jun 22-306.3%
IowaSummer visitorApr 22-30May 8-14Jun 22-303.0%
MinnesotaPasses throughMay 1-7May 22-31Jun 15-213.8%
New HampshirePasses throughMay 1-7May 15-21Jun 8-142.5%
VermontPasses throughMay 1-7May 15-21Jun 15-211.8%
AlabamaSummer visitorAug 1-7Sep 8-14Oct 8-144.2%
DelawareSummer visitorAug 8-14Aug 22-31Sep 15-212.2%
MarylandPasses throughAug 8-14Sep 1-7Sep 22-302.1%
GeorgiaPasses throughAug 15-21Sep 8-14Oct 8-141.2%
North CarolinaPasses throughAug 15-21Sep 8-14Oct 8-141.5%

Passes through: Maryland, Georgia, North Carolina

Summer visitor in: Alabama, Delaware