WhenToBird

Passerella iliaca · Passerellidae

Fox Sparrow: When and Where to See It

Adult Fox Sparrow
Photo: Kevin Krebs, CC BY 4.0 via iNaturalist

The Fox Sparrow reaches Oregon first, around early September, and Texas last, around mid 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%4%Jan 1-7: 2.9% of 1114036 checklistsJan 8-14: 2.9% of 824708 checklistsJan 15-21: 2.9% of 825978 checklistsJan 22-31: 2.6% of 1105853 checklistsFeb 1-7: 2.4% of 779772 checklistsFeb 8-14: 2.3% of 864504 checklistsFeb 15-21: 2.2% of 1127933 checklistsFeb 22-28: 2.3% of 840124 checklistsMar 1-7: 2.5% of 839610 checklistsMar 8-14: 2.8% of 870138 checklistsMar 15-21: 3.2% of 898456 checklistsMar 22-31: 3.5% of 1335637 checklistsApr 1-7: 3.7% of 1030617 checklistsApr 8-14: 2.8% of 1124024 checklistsApr 15-21: 1.6% of 1194575 checklistsApr 22-30: 0.7% of 1675723 checklistsMay 1-7: 0.3% of 1449080 checklistsMay 8-14: 0.3% of 1538353 checklistsMay 15-21: 0.3% of 1219898 checklistsMay 22-31: 0.5% of 1452282 checklistsJun 1-7: 0.6% of 900636 checklistsJun 8-14: 0.8% of 829907 checklistsJun 15-21: 0.9% of 773255 checklistsJun 22-30: 0.9% of 916255 checklistsJul 1-7: 0.7% of 717733 checklistsJul 8-14: 0.6% of 658223 checklistsJul 15-21: 0.5% of 638752 checklistsJul 22-31: 0.3% of 895727 checklistsAug 1-7: 0.2% of 655651 checklistsAug 8-14: 0.2% of 650038 checklistsAug 15-21: 0.1% of 654639 checklistsAug 22-31: 0.2% of 974928 checklistsSep 1-7: 0.2% of 765914 checklistsSep 8-14: 0.3% of 738674 checklistsSep 15-21: 0.7% of 750433 checklistsSep 22-30: 1.3% of 944196 checklistsOct 1-7: 1.8% of 760106 checklistsOct 8-14: 2.3% of 793131 checklistsOct 15-21: 2.8% of 728727 checklistsOct 22-31: 3.4% of 959954 checklistsNov 1-7: 3.6% of 709464 checklistsNov 8-14: 3.8% of 693424 checklistsNov 15-21: 4.0% of 653952 checklistsNov 22-30: 3.7% of 871137 checklistsDec 1-7: 3.5% of 627591 checklistsDec 8-14: 3.3% of 642427 checklistsDec 15-21: 3.5% of 775638 checklistsDec 22-31: 3.1% 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 %
WisconsinSummer visitorMar 1-7Apr 1-7Apr 22-3010%
MaineSummer visitorMar 1-7Apr 1-7Apr 15-213.9%
New HampshireSummer visitorMar 1-7Apr 1-7Apr 15-213.7%
MinnesotaSummer visitorMar 8-14Apr 8-14May 1-712%
MichiganSummer visitorMar 8-14Apr 8-14Apr 22-305.4%
VermontSummer visitorMar 8-14Apr 1-7May 1-74.0%
AlaskaSummer visitorMar 15-21May 15-21Sep 22-3014%
North DakotaSummer visitorMar 15-21Apr 15-21May 8-149.7%
UtahSummer visitorApr 1-7Jun 22-30Jul 22-313.8%
NevadaSummer visitorApr 8-14Jul 1-7Jul 22-316.9%
IdahoSummer visitorApr 8-14Jul 1-7Aug 1-73.2%
WyomingSummer visitorApr 15-21Jun 22-30Jul 22-311.9%
ColoradoSummer visitorMay 15-21Jul 1-7Aug 1-71.6%
MontanaPasses throughJun 1-7Jul 1-7Jul 22-312.7%
OhioSummer visitorOct 15-21Apr 1-7Apr 15-215.8%
IowaWinter visitorOct 1-7Oct 22-31Dec 15-2111%
IllinoisWinter visitorOct 1-7Mar 22-31Apr 15-2111%
NebraskaWinter visitorOct 1-7Nov 1-7Apr 15-215.0%
IndianaWinter visitorOct 8-14Mar 22-31Apr 8-145.8%
KansasWinter visitorOct 8-14Nov 8-14Apr 1-76.2%
MissouriWinter visitorOct 15-21Mar 8-14Apr 1-76.4%
New YorkWinter visitorOct 15-21Mar 22-31Apr 15-215.1%
District of ColumbiaWinter visitorOct 22-31Nov 22-30Apr 1-78.3%
OklahomaWinter visitorOct 22-31Dec 8-14Mar 15-216.6%
MassachusettsWinter visitorOct 22-31Mar 22-31Apr 8-143.3%
MarylandWinter visitorOct 22-31Nov 22-30Apr 1-74.8%
PennsylvaniaWinter visitorOct 22-31Nov 15-21Apr 8-144.9%
ArkansasWinter visitorNov 1-7Feb 8-14Mar 1-76.2%
New JerseyWinter visitorNov 1-7Nov 22-30Apr 1-77.3%
ConnecticutWinter visitorNov 1-7Nov 22-30Apr 1-74.3%
DelawareWinter visitorNov 1-7Dec 8-14Mar 22-314.8%
KentuckyWinter visitorNov 1-7Jan 8-14Mar 22-313.5%
TennesseeWinter visitorNov 1-7Dec 15-21Mar 15-214.4%
VirginiaWinter visitorNov 1-7Dec 1-7Mar 22-313.8%
West VirginiaWinter visitorNov 1-7Mar 15-21Apr 1-73.5%
North CarolinaWinter visitorNov 8-14Dec 15-21Mar 15-213.5%
Rhode IslandWinter visitorNov 8-14Dec 8-14Mar 22-313.3%
AlabamaWinter visitorNov 8-14Dec 8-14Mar 1-71.4%
GeorgiaWinter visitorNov 15-21Dec 22-31Mar 8-141.7%
South CarolinaWinter visitorNov 15-21Dec 15-21Mar 1-71.7%
TexasWinter visitorNov 15-21Dec 8-14Mar 8-141.6%
MississippiWinter visitorNov 22-30Feb 8-14Mar 1-72.6%
LouisianaWinter visitorDec 1-7Feb 15-21Mar 1-71.6%
OregonWinter visitorSep 1-7Dec 15-21Apr 1-714%
WashingtonWinter visitorSep 8-14Dec 15-21Apr 8-1413%
CaliforniaWinter visitorSep 8-14Oct 8-14Apr 8-147.9%
South DakotaWinter visitorSep 22-30Oct 15-21Nov 22-305.3%

Winter visitor in: Illinois, Indiana, Missouri, New York, Massachusetts, Arkansas, West Virginia, Mississippi, Louisiana

Passes through: Montana

Summer visitor in: Wisconsin, Maine, New Hampshire, Minnesota, Michigan, Vermont, Alaska, North Dakota, Utah, Nevada, Idaho, Wyoming, Colorado, Ohio