WhenToBird

Mareca strepera · Anatidae

Gadwall: When and Where to See It

Adult Gadwall
Photo: Anne Parsons, CC0 1.0 via iNaturalist

The Gadwall reaches Kansas first, around late September, and Oregon last, around mid December.

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%2%4%6%8%Jan 1-7: 6.6% of 1114036 checklistsJan 8-14: 6.4% of 824708 checklistsJan 15-21: 6.3% of 825978 checklistsJan 22-31: 6.2% of 1105853 checklistsFeb 1-7: 6.1% of 779772 checklistsFeb 8-14: 5.3% of 864504 checklistsFeb 15-21: 4.7% of 1127933 checklistsFeb 22-28: 6.4% of 840124 checklistsMar 1-7: 6.9% of 839610 checklistsMar 8-14: 7.1% of 870138 checklistsMar 15-21: 7.1% of 898456 checklistsMar 22-31: 6.8% of 1335637 checklistsApr 1-7: 6.1% of 1030617 checklistsApr 8-14: 5.5% of 1124024 checklistsApr 15-21: 5.0% of 1194575 checklistsApr 22-30: 4.3% of 1675723 checklistsMay 1-7: 3.5% of 1449080 checklistsMay 8-14: 2.9% of 1538353 checklistsMay 15-21: 2.8% of 1219898 checklistsMay 22-31: 2.8% of 1452282 checklistsJun 1-7: 2.5% of 900636 checklistsJun 8-14: 2.2% of 829907 checklistsJun 15-21: 1.9% of 773255 checklistsJun 22-30: 1.6% of 916255 checklistsJul 1-7: 1.3% of 717733 checklistsJul 8-14: 1.1% of 658223 checklistsJul 15-21: 1.1% of 638752 checklistsJul 22-31: 1.0% of 895727 checklistsAug 1-7: 1.0% of 655651 checklistsAug 8-14: 1.1% of 650038 checklistsAug 15-21: 1.3% of 654639 checklistsAug 22-31: 1.5% of 974928 checklistsSep 1-7: 1.6% of 765914 checklistsSep 8-14: 1.7% of 738674 checklistsSep 15-21: 1.9% of 750433 checklistsSep 22-30: 2.3% of 944196 checklistsOct 1-7: 2.7% of 760106 checklistsOct 8-14: 3.4% of 793131 checklistsOct 15-21: 4.5% of 728727 checklistsOct 22-31: 5.6% of 959954 checklistsNov 1-7: 6.4% of 709464 checklistsNov 8-14: 6.9% of 693424 checklistsNov 15-21: 6.8% of 653952 checklistsNov 22-30: 6.9% of 871137 checklistsDec 1-7: 6.7% of 627591 checklistsDec 8-14: 6.2% of 642427 checklistsDec 15-21: 5.5% of 775638 checklistsDec 22-31: 5.8% 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 15-21Apr 1-7May 8-149.2%
WyomingSummer visitorFeb 22-28Apr 15-21Nov 15-2123%
MontanaSummer visitorFeb 22-28Apr 22-30Nov 15-2119%
MaineSummer visitorFeb 22-28Apr 1-7Jun 1-71.7%
North DakotaSummer visitorMar 1-7Jun 1-7Nov 8-1422%
VermontPasses throughMar 1-7Mar 22-31Apr 15-212.3%
South DakotaAll year, most in springMar 8-14Apr 8-14May 1-724%
ColoradoSummer visitorAug 22-31Apr 8-14May 15-2126%
UtahSummer visitorAug 22-31Apr 1-7May 22-3115%
AlaskaSummer visitorDec 15-21Apr 15-21Jul 1-79.5%
OklahomaWinter visitorOct 1-7Jan 8-14Apr 1-715%
OhioWinter visitorOct 1-7Mar 8-14Apr 15-2111%
ArkansasWinter visitorOct 1-7Nov 8-14Mar 22-319.4%
IndianaWinter visitorOct 1-7Mar 8-14Apr 8-149.7%
MissouriWinter visitorOct 1-7Nov 8-14Apr 8-149.7%
Rhode IslandWinter visitorOct 1-7Jan 8-14Apr 1-78.2%
DelawareWinter visitorOct 1-7Mar 1-7Apr 8-147.2%
TennesseeWinter visitorOct 8-14Dec 1-7Mar 15-2110%
TexasWinter visitorOct 8-14Jan 15-21Mar 22-3112%
KentuckyWinter visitorOct 8-14Jan 15-21Apr 1-78.0%
North CarolinaWinter visitorOct 8-14Jan 8-14Mar 8-146.2%
PennsylvaniaWinter visitorOct 8-14Mar 8-14Apr 8-145.3%
NevadaAll year, most in winterOct 15-21Apr 15-21May 8-1417%
AlabamaWinter visitorOct 15-21Jan 15-21Mar 1-78.6%
MississippiWinter visitorOct 15-21Nov 22-30Mar 8-147.6%
VirginiaWinter visitorOct 15-21Jan 22-31Mar 15-219.3%
ConnecticutWinter visitorOct 15-21Jan 8-14Apr 8-146.0%
LouisianaWinter visitorOct 15-21Jan 8-14Mar 8-145.5%
MarylandWinter visitorOct 15-21Mar 1-7Mar 22-316.0%
West VirginiaWinter visitorOct 15-21Dec 1-7Mar 22-315.2%
District of ColumbiaWinter visitorOct 15-21Nov 8-14Mar 15-214.3%
GeorgiaWinter visitorOct 22-31Nov 22-30Mar 1-73.1%
FloridaWinter visitorNov 1-7Nov 22-30Feb 15-211.1%
South CarolinaWinter visitorNov 8-14Jan 15-21Mar 15-214.6%
OregonAll year, most in springDec 15-21May 8-14Jun 1-713%
IowaWinter visitorFeb 8-14Mar 15-21May 1-718%
NebraskaWinter visitorAug 15-21Mar 22-31May 8-1419%
New YorkWinter visitorAug 22-31Jan 8-14Apr 22-306.5%
New MexicoWinter visitorSep 1-7Mar 15-21May 8-1411%
ArizonaWinter visitorSep 8-14Nov 22-30Apr 1-79.7%
New JerseyWinter visitorSep 8-14Nov 22-30Apr 15-219.9%
KansasWinter visitorSep 22-30Mar 15-21Apr 22-3016%
IllinoisWinter visitorSep 22-30Mar 8-14Apr 15-218.8%
WisconsinWinter visitorSep 22-30Mar 22-31May 8-149.0%
MichiganWinter visitorSep 22-30Mar 22-31May 1-76.9%
MassachusettsWinter visitorSep 22-30Jan 1-7Jun 8-143.4%
IdahoYear-round–Apr 15-21–13%
WashingtonYear-round–Apr 22-30–12%
CaliforniaYear-round–Jan 8-14–9.3%

Winter visitor in: Arkansas, Missouri, Tennessee, Mississippi, West Virginia, District of Columbia, Georgia, Florida, Arizona, New Jersey, Iowa, Nebraska, New York, New Mexico

Passes through: Vermont, South Dakota

Summer visitor in: North Dakota, Minnesota, Wyoming, Montana, Maine, Colorado, Utah