WhenToBird

Nyctanassa violacea · Ardeidae

Yellow-crowned Night Heron: When and Where to See It

Adult Yellow-crowned Night-Heron
Photo: Michelle W. （鍾偉瑋）, CC BY 4.0 via iNaturalist

The Yellow-crowned Night Heron reaches Texas first, around the second week of March, and Massachusetts last, around mid June.

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%0.5%1%1.5%Jan 1-7: 0.4% of 1114036 checklistsJan 8-14: 0.4% of 824708 checklistsJan 15-21: 0.4% of 825978 checklistsJan 22-31: 0.4% of 1105853 checklistsFeb 1-7: 0.4% of 779772 checklistsFeb 8-14: 0.3% of 864504 checklistsFeb 15-21: 0.3% of 1127933 checklistsFeb 22-28: 0.4% of 840124 checklistsMar 1-7: 0.3% of 839610 checklistsMar 8-14: 0.4% of 870138 checklistsMar 15-21: 0.4% of 898456 checklistsMar 22-31: 0.6% of 1335637 checklistsApr 1-7: 0.7% of 1030617 checklistsApr 8-14: 0.9% of 1124024 checklistsApr 15-21: 1.1% of 1194575 checklistsApr 22-30: 1.1% of 1675723 checklistsMay 1-7: 0.9% of 1449080 checklistsMay 8-14: 0.8% of 1538353 checklistsMay 15-21: 0.9% of 1219898 checklistsMay 22-31: 0.9% of 1452282 checklistsJun 1-7: 1.0% of 900636 checklistsJun 8-14: 1.0% of 829907 checklistsJun 15-21: 1.1% of 773255 checklistsJun 22-30: 1.2% of 916255 checklistsJul 1-7: 1.2% of 717733 checklistsJul 8-14: 1.3% of 658223 checklistsJul 15-21: 1.3% of 638752 checklistsJul 22-31: 1.4% of 895727 checklistsAug 1-7: 1.4% of 655651 checklistsAug 8-14: 1.4% of 650038 checklistsAug 15-21: 1.4% of 654639 checklistsAug 22-31: 1.3% of 974928 checklistsSep 1-7: 1.1% of 765914 checklistsSep 8-14: 1.0% of 738674 checklistsSep 15-21: 0.9% of 750433 checklistsSep 22-30: 0.8% of 944196 checklistsOct 1-7: 0.7% of 760106 checklistsOct 8-14: 0.5% of 793131 checklistsOct 15-21: 0.4% of 728727 checklistsOct 22-31: 0.4% of 959954 checklistsNov 1-7: 0.4% of 709464 checklistsNov 8-14: 0.4% of 693424 checklistsNov 15-21: 0.3% of 653952 checklistsNov 22-30: 0.3% of 871137 checklistsDec 1-7: 0.4% of 627591 checklistsDec 8-14: 0.4% of 642427 checklistsDec 15-21: 0.3% of 775638 checklistsDec 22-31: 0.4% 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 %
TexasSummer visitorMar 8-14Jun 22-30Sep 15-2110%
LouisianaSummer visitorMar 8-14Jul 1-7Sep 8-149.7%
GeorgiaSummer visitorMar 8-14Jul 15-21Oct 22-312.2%
South CarolinaSummer visitorMar 15-21Jul 22-31Oct 1-77.0%
North CarolinaSummer visitorMar 22-31Aug 8-14Oct 1-71.2%
TennesseeSummer visitorApr 1-7Jul 8-14Sep 22-301.8%
MississippiSummer visitorApr 8-14Jul 15-21Oct 1-75.6%
OklahomaSummer visitorApr 8-14Jul 22-31Sep 8-144.3%
New JerseySummer visitorApr 15-21Jul 15-21Oct 1-72.9%
VirginiaSummer visitorApr 15-21Aug 8-14Oct 1-72.6%
CaliforniaSummer visitorApr 22-30Aug 8-14Mar 8-141.1%
KansasSummer visitorMay 1-7Jul 15-21Sep 8-141.6%
ConnecticutSummer visitorMay 8-14Aug 1-7Oct 8-145.8%
District of ColumbiaSummer visitorMay 8-14Jun 8-14Aug 8-142.9%
New YorkSummer visitorMay 8-14Aug 1-7Sep 22-302.2%
AlabamaSummer visitorJun 8-14Aug 1-7Oct 8-143.0%
DelawareSummer visitorJun 15-21Aug 8-14Oct 1-71.8%
MassachusettsSummer visitorJun 15-21Aug 15-21Sep 22-301.3%
Rhode IslandSummer visitorJul 1-7Aug 15-21Sep 15-212.7%
FloridaYear-round–Jun 15-21–5.4%

Summer visitor in: Rhode Island