WhenToBird

Setophaga virens · Parulidae

Black-throated Green Warbler: When and Where to See It

Adult Black-throated Green Warbler
Photo: Ken Clark, CC BY 4.0 via iNaturalist

The Black-throated Green Warbler reaches Texas first, around the second week of March, and Minnesota 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%5%10%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: 0.3% of 1335637 checklistsApr 1-7: 0.5% of 1030617 checklistsApr 8-14: 0.7% of 1124024 checklistsApr 15-21: 1.4% of 1194575 checklistsApr 22-30: 3.1% of 1675723 checklistsMay 1-7: 7.2% of 1449080 checklistsMay 8-14: 8.6% of 1538353 checklistsMay 15-21: 7.2% of 1219898 checklistsMay 22-31: 3.6% of 1452282 checklistsJun 1-7: 2.7% of 900636 checklistsJun 8-14: 2.5% of 829907 checklistsJun 15-21: 2.6% of 773255 checklistsJun 22-30: 2.3% of 916255 checklistsJul 1-7: 2.3% of 717733 checklistsJul 8-14: 1.9% of 658223 checklistsJul 15-21: 1.5% of 638752 checklistsJul 22-31: 1.0% of 895727 checklistsAug 1-7: 0.6% of 655651 checklistsAug 8-14: 0.6% of 650038 checklistsAug 15-21: 0.8% of 654639 checklistsAug 22-31: 1.7% of 974928 checklistsSep 1-7: 3.2% of 765914 checklistsSep 8-14: 4.4% of 738674 checklistsSep 15-21: 5.2% of 750433 checklistsSep 22-30: 5.3% of 944196 checklistsOct 1-7: 3.9% of 760106 checklistsOct 8-14: 2.2% of 793131 checklistsOct 15-21: 1.1% of 728727 checklistsOct 22-31: 0.5% of 959954 checklistsNov 1-7: 0.2% of 709464 checklistsNov 8-14: 0.2% 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 %
TexasPasses throughMar 8-14Apr 22-30May 22-318.2%
LouisianaSummer visitorMar 15-21Apr 22-30May 15-215.5%
ArkansasSummer visitorMar 15-21Apr 22-30Jun 22-304.7%
North CarolinaSummer visitorMar 22-31Sep 15-21Oct 15-215.8%
GeorgiaSummer visitorMar 22-31Apr 22-30Jun 22-303.8%
South CarolinaSummer visitorMar 22-31Apr 22-30Jul 8-141.7%
West VirginiaSummer visitorApr 1-7May 8-14Oct 8-1415%
OhioPasses throughApr 15-21May 8-14Jun 1-716%
IllinoisSummer visitorApr 15-21May 8-14Jun 1-713%
New YorkSummer visitorApr 15-21May 8-14Jul 15-2113%
PennsylvaniaSummer visitorApr 15-21Sep 15-21Oct 8-1414%
ConnecticutSummer visitorApr 15-21May 8-14Jul 8-1411%
New JerseySummer visitorApr 15-21May 8-14Jun 1-79.8%
MaineSummer visitorApr 22-30May 15-21Sep 15-2132%
New HampshireSummer visitorApr 22-30May 15-21Sep 22-3019%
VermontSummer visitorApr 22-30May 15-21Oct 1-719%
MassachusettsPasses throughApr 22-30May 8-14Jul 8-1414%
MichiganSummer visitorApr 22-30May 8-14Oct 1-714%
WisconsinSummer visitorApr 22-30May 8-14Oct 1-712%
Rhode IslandPasses throughApr 22-30May 8-14Jun 22-309.3%
MinnesotaSummer visitorMay 1-7May 15-21Jul 15-214.6%
District of ColumbiaSummer visitorAug 15-21Sep 22-30Oct 15-2115%
MarylandSummer visitorAug 15-21Sep 22-30Oct 15-2111%
IndianaPasses throughAug 22-31Sep 22-30Oct 15-2115%
DelawarePasses throughAug 22-31Sep 15-21Oct 8-148.1%
MissouriSummer visitorAug 22-31Sep 22-30Oct 15-217.5%
IowaSummer visitorAug 22-31Sep 8-14Oct 1-76.6%
VirginiaSummer visitorAug 22-31Sep 22-30Oct 15-216.7%
KansasPasses throughAug 22-31Sep 22-30Oct 15-211.8%
NebraskaPasses throughAug 22-31Sep 8-14Oct 1-71.9%
TennesseeWinter visitorAug 8-14Oct 1-7Oct 22-3111%
AlabamaWinter visitorAug 8-14Oct 8-14Nov 1-76.7%
KentuckyWinter visitorAug 22-31Oct 1-7Oct 22-3113%
MississippiWinter visitorSep 8-14Oct 8-14Nov 1-74.3%
FloridaWinter visitorSep 22-30Oct 15-21May 8-142.3%

Winter visitor in: Tennessee, Alabama, Kentucky, Mississippi, Florida

Passes through: Indiana, Delaware, Kansas, Nebraska

Summer visitor in: North Carolina, Pennsylvania, District of Columbia, Maryland, Missouri, Iowa, Virginia