WhenToBird

Larus delawarensis · Laridae

Ring-billed Gull: When and Where to See It

Adult Ring-billed Gull
Photo: Isaac Krone, CC BY 4.0 via iNaturalist

The Ring-billed Gull reaches Maryland first, around late June, and Georgia last, around early October.

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%15%20%Jan 1-7: 17% of 1114036 checklistsJan 8-14: 16% of 824708 checklistsJan 15-21: 15% of 825978 checklistsJan 22-31: 15% of 1105853 checklistsFeb 1-7: 15% of 779772 checklistsFeb 8-14: 13% of 864504 checklistsFeb 15-21: 11% of 1127933 checklistsFeb 22-28: 15% of 840124 checklistsMar 1-7: 15% of 839610 checklistsMar 8-14: 15% of 870138 checklistsMar 15-21: 14% of 898456 checklistsMar 22-31: 13% of 1335637 checklistsApr 1-7: 11% of 1030617 checklistsApr 8-14: 9.9% of 1124024 checklistsApr 15-21: 8.5% of 1194575 checklistsApr 22-30: 7.4% of 1675723 checklistsMay 1-7: 6.6% of 1449080 checklistsMay 8-14: 6.3% of 1538353 checklistsMay 15-21: 6.2% of 1219898 checklistsMay 22-31: 5.4% of 1452282 checklistsJun 1-7: 4.4% of 900636 checklistsJun 8-14: 4.1% of 829907 checklistsJun 15-21: 4.0% of 773255 checklistsJun 22-30: 4.1% of 916255 checklistsJul 1-7: 4.8% of 717733 checklistsJul 8-14: 6.0% of 658223 checklistsJul 15-21: 7.1% of 638752 checklistsJul 22-31: 8.4% of 895727 checklistsAug 1-7: 9.4% of 655651 checklistsAug 8-14: 10% of 650038 checklistsAug 15-21: 11% of 654639 checklistsAug 22-31: 11% of 974928 checklistsSep 1-7: 11% of 765914 checklistsSep 8-14: 10% of 738674 checklistsSep 15-21: 10% of 750433 checklistsSep 22-30: 11% of 944196 checklistsOct 1-7: 11% of 760106 checklistsOct 8-14: 11% of 793131 checklistsOct 15-21: 12% of 728727 checklistsOct 22-31: 14% of 959954 checklistsNov 1-7: 15% of 709464 checklistsNov 8-14: 16% of 693424 checklistsNov 15-21: 17% of 653952 checklistsNov 22-30: 18% of 871137 checklistsDec 1-7: 17% of 627591 checklistsDec 8-14: 16% of 642427 checklistsDec 15-21: 15% of 775638 checklistsDec 22-31: 16% 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 %
South DakotaSummer visitorFeb 22-28Apr 1-7Dec 15-2126%
MontanaSummer visitorFeb 22-28Apr 1-7Nov 22-3015%
WyomingSummer visitorMar 1-7Apr 8-14Dec 1-713%
North DakotaSummer visitorMar 8-14Apr 8-14Nov 15-2134%
MichiganAll year, most in fallJul 8-14Nov 8-14Dec 8-1426%
VermontAll year, most in fallJul 22-31Nov 1-7Nov 22-3018%
IndianaAll year, most in winterOct 1-7Nov 22-30Feb 1-719%
AlabamaWinter visitorOct 1-7Jan 15-21Mar 8-1416%
GeorgiaWinter visitorOct 1-7Jan 1-7Mar 15-219.0%
MississippiWinter visitorOct 8-14Jan 15-21Mar 15-2121%
LouisianaWinter visitorOct 8-14Jan 8-14Mar 15-2117%
ArkansasWinter visitorOct 8-14Dec 15-21Mar 8-1413%
New JerseyAll year, most in winterOct 15-21Jan 15-21Mar 22-3130%
OhioAll year, most in winterOct 15-21Nov 15-21Feb 1-729%
DelawareAll year, most in winterOct 22-31Jan 22-31Apr 1-731%
FloridaWinter visitorOct 22-31Jan 15-21Mar 15-2121%
West VirginiaWinter visitorNov 1-7Feb 1-7Mar 8-147.2%
MinnesotaWinter visitorFeb 22-28Oct 22-31Dec 1-726%
MarylandWinter visitorJun 22-30Jan 22-31Apr 8-1426%
District of ColumbiaWinter visitorJul 1-7Dec 22-31Apr 8-1455%
IowaWinter visitorJul 1-7Nov 15-21Apr 15-2130%
NebraskaWinter visitorJul 1-7Nov 8-14Apr 22-3024%
VirginiaWinter visitorJul 1-7Jan 22-31Apr 1-723%
South CarolinaWinter visitorJul 1-7Jan 1-7Apr 1-721%
NevadaWinter visitorJul 1-7Jan 8-14Apr 22-3019%
New HampshireWinter visitorJul 1-7Nov 15-21Apr 8-1416%
PennsylvaniaWinter visitorJul 1-7Mar 1-7Apr 8-1415%
OregonWinter visitorJul 1-7Nov 1-7May 22-316.7%
KansasWinter visitorJul 8-14Nov 8-14Apr 8-1426%
CaliforniaWinter visitorJul 8-14Jan 8-14Apr 1-715%
MissouriWinter visitorJul 8-14Nov 22-30Apr 1-713%
ColoradoWinter visitorJul 15-21Nov 8-14Apr 15-2128%
North CarolinaWinter visitorJul 15-21Jan 1-7Mar 22-3119%
KentuckyWinter visitorJul 15-21Dec 1-7Mar 15-2113%
OklahomaWinter visitorJul 22-31Nov 15-21Apr 1-731%
WisconsinAll year, most in fallJul 22-31Nov 1-7Dec 1-727%
New MexicoWinter visitorAug 1-7Dec 1-7Apr 22-307.7%
MaineAll year, most in fallAug 8-14Nov 8-14Jan 8-1428%
WashingtonAll year, most in fallAug 8-14Sep 22-30Dec 1-713%
TennesseeWinter visitorAug 22-31Jan 22-31Mar 8-1419%
UtahAll year, most in winterAug 22-31Nov 15-21Mar 15-2119%
TexasWinter visitorSep 8-14Dec 22-31Mar 22-3114%
ArizonaWinter visitorSep 15-21Nov 15-21May 1-73.4%
New YorkYear-round–Nov 15-21–33%
Rhode IslandYear-round–Dec 1-7–33%
IllinoisYear-round–Mar 8-14–31%
ConnecticutYear-round–Jan 8-14–25%
MassachusettsYear-round–Dec 1-7–23%
IdahoYear-round–Nov 1-7–17%

Winter visitor in: Pennsylvania, Mississippi, Louisiana, Arkansas, New Jersey, Ohio, Delaware, Florida, West Virginia, Minnesota

Summer visitor in: South Dakota, Montana, Wyoming, North Dakota