WhenToBird

Podiceps auritus · Podicipedidae

Horned Grebe: When and Where to See It

Adult Horned Grebe
Photo: Kalvin Chan, CC BY 4.0 via iNaturalist

The Horned Grebe reaches Washington first, around late August, and Connecticut last, around late 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%1%2%3%Jan 1-7: 2.3% of 1114036 checklistsJan 8-14: 2.2% of 824708 checklistsJan 15-21: 2.3% of 825978 checklistsJan 22-31: 2.1% of 1105853 checklistsFeb 1-7: 2.0% of 779772 checklistsFeb 8-14: 1.8% of 864504 checklistsFeb 15-21: 1.6% of 1127933 checklistsFeb 22-28: 2.1% of 840124 checklistsMar 1-7: 2.3% of 839610 checklistsMar 8-14: 2.5% of 870138 checklistsMar 15-21: 2.7% of 898456 checklistsMar 22-31: 2.8% of 1335637 checklistsApr 1-7: 2.6% of 1030617 checklistsApr 8-14: 2.1% of 1124024 checklistsApr 15-21: 1.7% of 1194575 checklistsApr 22-30: 1.1% of 1675723 checklistsMay 1-7: 0.6% of 1449080 checklistsMay 8-14: 0.3% of 1538353 checklistsMay 15-21: 0.1% of 1219898 checklistsMay 22-31: 0.1% of 1452282 checklistsJun 1-7: 0.1% of 900636 checklistsJun 8-14: 0.1% of 829907 checklistsJun 15-21: 0.1% of 773255 checklistsJun 22-30: 0.1% of 916255 checklistsJul 1-7: 0.1% of 717733 checklistsJul 8-14: 0.1% of 658223 checklistsJul 15-21: 0.1% of 638752 checklistsJul 22-31: 0.1% of 895727 checklistsAug 1-7: 0.1% of 655651 checklistsAug 8-14: 0.1% of 650038 checklistsAug 15-21: 0.1% of 654639 checklistsAug 22-31: 0.1% of 974928 checklistsSep 1-7: 0.2% of 765914 checklistsSep 8-14: 0.3% of 738674 checklistsSep 15-21: 0.4% of 750433 checklistsSep 22-30: 0.5% of 944196 checklistsOct 1-7: 0.7% of 760106 checklistsOct 8-14: 0.9% of 793131 checklistsOct 15-21: 1.3% of 728727 checklistsOct 22-31: 2.0% of 959954 checklistsNov 1-7: 2.4% of 709464 checklistsNov 8-14: 2.8% of 693424 checklistsNov 15-21: 2.9% of 653952 checklistsNov 22-30: 2.8% of 871137 checklistsDec 1-7: 2.7% of 627591 checklistsDec 8-14: 2.3% of 642427 checklistsDec 15-21: 2.0% of 775638 checklistsDec 22-31: 2.2% 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 %
ColoradoSummer visitorFeb 22-28Apr 8-14May 1-75.1%
MichiganSummer visitorFeb 22-28Apr 1-7May 1-75.1%
South DakotaSummer visitorMar 15-21Apr 15-21May 15-213.8%
MinnesotaPasses throughMar 22-31Apr 15-21May 15-215.8%
North DakotaPasses throughApr 1-7Apr 22-30Jul 22-315.4%
IowaPasses throughOct 8-14Nov 1-7Dec 1-74.6%
New YorkSummer visitorOct 22-31Apr 1-7Apr 15-213.3%
NebraskaWinter visitorOct 1-7Nov 1-7Dec 1-73.4%
WisconsinWinter visitorOct 1-7Nov 1-7Dec 1-74.2%
MaineWinter visitorOct 8-14Dec 22-31Mar 22-316.7%
KansasWinter visitorOct 15-21Nov 8-14Dec 1-73.8%
MissouriWinter visitorOct 15-21Nov 8-14Dec 22-314.0%
VermontWinter visitorOct 15-21Nov 8-14Mar 1-72.9%
KentuckyWinter visitorOct 22-31Dec 1-7Apr 1-75.3%
OklahomaWinter visitorOct 22-31Nov 15-21Mar 22-315.5%
ArkansasWinter visitorOct 22-31Dec 1-7Feb 1-73.8%
CaliforniaWinter visitorOct 22-31Jan 8-14Mar 22-313.9%
MassachusettsWinter visitorOct 22-31Feb 1-7Apr 8-143.2%
Rhode IslandWinter visitorNov 1-7Feb 1-7Apr 1-710%
MarylandWinter visitorNov 1-7Mar 15-21Apr 15-215.9%
MississippiWinter visitorNov 1-7Jan 8-14Mar 8-146.3%
TennesseeWinter visitorNov 1-7Dec 1-7Mar 15-215.5%
District of ColumbiaWinter visitorNov 1-7Mar 15-21Apr 8-144.8%
North CarolinaWinter visitorNov 1-7Dec 1-7Mar 22-312.8%
New HampshireWinter visitorNov 1-7Jan 1-7Mar 8-142.6%
New JerseyWinter visitorNov 8-14Mar 15-21Apr 15-213.6%
VirginiaWinter visitorNov 8-14Mar 8-14Apr 8-143.6%
FloridaWinter visitorNov 8-14Jan 8-14Feb 15-211.4%
GeorgiaWinter visitorNov 8-14Dec 1-7Mar 15-211.5%
LouisianaWinter visitorNov 8-14Nov 22-30Mar 1-71.4%
AlabamaWinter visitorNov 15-21Jan 15-21Mar 1-73.0%
South CarolinaWinter visitorNov 15-21Jan 8-14Mar 15-213.6%
ConnecticutWinter visitorNov 22-30Feb 1-7Apr 8-143.4%
DelawareWinter visitorNov 22-30Mar 1-7Apr 1-73.8%
West VirginiaWinter visitorJan 8-14Mar 22-31Apr 8-141.9%
IndianaWinter visitorFeb 15-21Mar 15-21Apr 8-147.5%
OhioWinter visitorFeb 15-21Mar 15-21Apr 15-217.5%
PennsylvaniaWinter visitorFeb 15-21Mar 22-31Apr 22-304.5%
IllinoisWinter visitorFeb 22-28Mar 22-31Apr 15-217.4%
WashingtonWinter visitorAug 22-31Nov 8-14Apr 15-2115%
AlaskaWinter visitorAug 22-31Oct 8-14May 15-2110%
MontanaWinter visitorSep 1-7Oct 22-31Dec 8-145.0%
IdahoWinter visitorSep 8-14Oct 22-31May 1-74.7%
NevadaWinter visitorSep 8-14Nov 8-14Mar 22-313.0%
WyomingWinter visitorSep 8-14Nov 1-7Dec 8-142.4%
UtahWinter visitorSep 15-21Nov 15-21Jan 8-141.2%
OregonWinter visitorSep 22-30Nov 1-7Apr 8-144.6%

Winter visitor in: Maryland, District of Columbia, New Jersey, Virginia, Delaware, West Virginia, Indiana, Ohio, Pennsylvania, Illinois

Passes through: Minnesota, North Dakota

Summer visitor in: Colorado, Michigan, South Dakota, New York