WhenToBird

Lophodytes cucullatus · Anatidae

Hooded Merganser: When and Where to See It

Adult male Hooded Merganser
Photo: Justin Flint, CC BY 4.0 via iNaturalist

The Hooded Merganser reaches Alaska first, around mid September, and Texas last, around the second week of November.

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: 7.8% of 1114036 checklistsJan 8-14: 7.6% of 824708 checklistsJan 15-21: 7.3% of 825978 checklistsJan 22-31: 7.0% of 1105853 checklistsFeb 1-7: 6.5% of 779772 checklistsFeb 8-14: 5.6% of 864504 checklistsFeb 15-21: 5.0% of 1127933 checklistsFeb 22-28: 6.5% of 840124 checklistsMar 1-7: 6.9% of 839610 checklistsMar 8-14: 7.0% of 870138 checklistsMar 15-21: 6.7% of 898456 checklistsMar 22-31: 5.9% of 1335637 checklistsApr 1-7: 4.6% of 1030617 checklistsApr 8-14: 3.6% of 1124024 checklistsApr 15-21: 2.6% of 1194575 checklistsApr 22-30: 1.9% of 1675723 checklistsMay 1-7: 1.5% of 1449080 checklistsMay 8-14: 1.2% of 1538353 checklistsMay 15-21: 1.1% of 1219898 checklistsMay 22-31: 1.0% of 1452282 checklistsJun 1-7: 0.9% of 900636 checklistsJun 8-14: 0.8% of 829907 checklistsJun 15-21: 0.8% of 773255 checklistsJun 22-30: 0.7% of 916255 checklistsJul 1-7: 0.7% of 717733 checklistsJul 8-14: 0.7% of 658223 checklistsJul 15-21: 0.7% of 638752 checklistsJul 22-31: 0.8% of 895727 checklistsAug 1-7: 0.8% of 655651 checklistsAug 8-14: 0.8% of 650038 checklistsAug 15-21: 0.8% of 654639 checklistsAug 22-31: 0.8% of 974928 checklistsSep 1-7: 0.7% of 765914 checklistsSep 8-14: 0.7% of 738674 checklistsSep 15-21: 0.7% of 750433 checklistsSep 22-30: 0.7% of 944196 checklistsOct 1-7: 0.8% of 760106 checklistsOct 8-14: 0.9% of 793131 checklistsOct 15-21: 1.3% of 728727 checklistsOct 22-31: 2.7% of 959954 checklistsNov 1-7: 4.9% of 709464 checklistsNov 8-14: 6.7% of 693424 checklistsNov 15-21: 7.7% of 653952 checklistsNov 22-30: 8.1% of 871137 checklistsDec 1-7: 8.4% of 627591 checklistsDec 8-14: 7.8% of 642427 checklistsDec 15-21: 7.1% of 775638 checklistsDec 22-31: 7.0% 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 %
MinnesotaSummer visitorFeb 22-28Apr 1-7Dec 8-1420%
New HampshireAll year, most in springMar 1-7Mar 22-31Apr 15-2113%
North DakotaSummer visitorMar 8-14Apr 8-14Dec 1-711%
South DakotaSummer visitorOct 15-21Apr 1-7Apr 22-308.8%
ColoradoWinter visitorOct 8-14Nov 22-30Apr 8-1414%
IdahoWinter visitorOct 8-14Dec 1-7Apr 1-79.7%
Rhode IslandWinter visitorOct 15-21Jan 1-7Mar 15-2119%
ConnecticutWinter visitorOct 15-21Jan 8-14Mar 22-3117%
MassachusettsWinter visitorOct 15-21Dec 1-7Apr 1-715%
New YorkWinter visitorOct 15-21Nov 22-30Apr 8-1413%
OhioWinter visitorOct 15-21Mar 1-7Apr 1-711%
IllinoisWinter visitorOct 15-21Mar 8-14Apr 8-148.4%
NebraskaWinter visitorOct 15-21Nov 8-14Apr 15-217.4%
WyomingWinter visitorOct 15-21Nov 8-14Apr 22-305.0%
VirginiaWinter visitorOct 22-31Jan 22-31Mar 15-2115%
IowaWinter visitorOct 22-31Mar 15-21Apr 22-3013%
MarylandWinter visitorOct 22-31Jan 8-14Mar 22-3114%
New JerseyWinter visitorOct 22-31Jan 8-14Mar 15-2114%
West VirginiaWinter visitorOct 22-31Dec 1-7Mar 15-2113%
North CarolinaWinter visitorOct 22-31Jan 15-21Mar 1-711%
PennsylvaniaWinter visitorOct 22-31Mar 8-14Apr 8-1411%
IndianaWinter visitorOct 22-31Dec 1-7Mar 22-318.9%
KansasWinter visitorOct 22-31Jan 8-14Mar 8-149.4%
NevadaWinter visitorOct 22-31Jan 8-14Mar 15-218.6%
OklahomaWinter visitorOct 22-31Jan 8-14Mar 1-79.1%
MissouriWinter visitorOct 22-31Dec 1-7Mar 22-316.9%
UtahWinter visitorOct 22-31Nov 22-30Mar 22-315.2%
New MexicoWinter visitorOct 22-31Nov 15-21Mar 8-144.2%
South CarolinaWinter visitorNov 1-7Jan 8-14Mar 8-1414%
District of ColumbiaWinter visitorNov 1-7Jan 15-21Mar 22-318.2%
DelawareWinter visitorNov 1-7Dec 22-31Mar 8-149.8%
GeorgiaWinter visitorNov 1-7Jan 8-14Mar 15-217.5%
KentuckyWinter visitorNov 1-7Jan 15-21Mar 15-218.7%
MississippiWinter visitorNov 1-7Dec 8-14Feb 22-289.8%
AlabamaWinter visitorNov 1-7Dec 8-14Feb 15-215.8%
TennesseeWinter visitorNov 1-7Jan 15-21Mar 8-145.9%
ArkansasWinter visitorNov 1-7Jan 8-14Mar 1-73.6%
ArizonaWinter visitorNov 1-7Jan 8-14Mar 1-72.6%
CaliforniaWinter visitorNov 1-7Jan 8-14Mar 22-313.8%
FloridaWinter visitorNov 8-14Jan 8-14Feb 15-215.9%
LouisianaWinter visitorNov 8-14Dec 1-7Feb 8-143.4%
TexasWinter visitorNov 8-14Dec 1-7Feb 22-282.3%
WisconsinWinter visitorFeb 15-21Mar 22-31Jan 1-713%
OregonWinter visitorJul 8-14Nov 15-21Apr 1-710%
MontanaWinter visitorJul 15-21Nov 8-14May 15-2113%
VermontWinter visitorJul 15-21Mar 22-31May 1-713%
MichiganWinter visitorJul 15-21Mar 15-21Apr 15-2110%
MaineWinter visitorJul 22-31Nov 8-14Apr 22-3011%
WashingtonWinter visitorAug 1-7Nov 15-21Apr 8-1414%
AlaskaWinter visitorSep 15-21Oct 22-31Feb 1-73.4%

Winter visitor in: Ohio, Illinois, Iowa, Pennsylvania, Wisconsin, Vermont, Michigan, Oregon, Montana, Maine, Washington

Passes through: New Hampshire

Summer visitor in: Minnesota, North Dakota, South Dakota