WhenToBird

Limosa fedoa · Scolopacidae

When Do Marbled Godwits Arrive in California?

Adult Marbled Godwit
Photo: Elliott Gordon, CC BY 4.0 via iNaturalist

Marbled Godwits reach California in late June, are common by the second week of July, peak in mid August (7.7% of checklists), and most are gone by mid April.

When to look

First arrivalsJun 22-30late June
Common byJul 8-14the second week of July
PeakAug 15-21mid August
Most gone byApr 15-21mid April

Best: mid August. First arrivals late June; most are gone by mid April. Peak: on about 7.7% of California checklists.

  1. Janpeak season
  2. Febcommon
  3. Marcommon
  4. Aprcommon
  5. Mayuncommon
  6. Jununcommon
  7. Julpeak season
  8. Augpeak season
  9. Seppeak season
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

Darker months: more checklists report it. Outlined: peak month.

0%2%4%6%8%Jan 1-7: 6.6% of 112336 checklistsJan 8-14: 6.6% of 85518 checklistsJan 15-21: 6.6% of 86488 checklistsJan 22-31: 5.8% of 116174 checklistsFeb 1-7: 5.8% of 75171 checklistsFeb 8-14: 5.1% of 84467 checklistsFeb 15-21: 4.6% of 105683 checklistsFeb 22-28: 5.6% of 83396 checklistsMar 1-7: 5.2% of 77470 checklistsMar 8-14: 4.8% of 75180 checklistsMar 15-21: 4.8% of 80770 checklistsMar 22-31: 4.4% of 114116 checklistsApr 1-7: 4.1% of 84057 checklistsApr 8-14: 4.0% of 83692 checklistsApr 15-21: 4.0% of 89242 checklistsApr 22-30: 3.1% of 114289 checklistsMay 1-7: 2.2% of 85728 checklistsMay 8-14: 1.8% of 91984 checklistsMay 15-21: 1.5% of 75478 checklistsMay 22-31: 1.4% of 106250 checklistsJun 1-7: 1.3% of 70051 checklistsJun 8-14: 1.4% of 67485 checklistsJun 15-21: 1.3% of 66269 checklistsJun 22-30: 1.8% of 79172 checklistsJul 1-7: 3.1% of 62877 checklistsJul 8-14: 4.7% of 60328 checklistsJul 15-21: 5.8% of 59705 checklistsJul 22-31: 6.4% of 83796 checklistsAug 1-7: 6.6% of 60215 checklistsAug 8-14: 7.5% of 60172 checklistsAug 15-21: 7.8% of 59877 checklistsAug 22-31: 7.7% of 89107 checklistsSep 1-7: 7.4% of 72000 checklistsSep 8-14: 6.6% of 71228 checklistsSep 15-21: 5.7% of 76808 checklistsSep 22-30: 5.3% of 100204 checklistsOct 1-7: 5.4% of 76571 checklistsOct 8-14: 5.5% of 80874 checklistsOct 15-21: 5.6% of 74581 checklistsOct 22-31: 5.9% of 97498 checklistsNov 1-7: 5.8% of 70851 checklistsNov 8-14: 5.9% of 72431 checklistsNov 15-21: 5.8% of 66767 checklistsNov 22-30: 6.1% of 94737 checklistsDec 1-7: 6.0% of 65393 checklistsDec 8-14: 5.9% of 67449 checklistsDec 15-21: 4.6% of 83421 checklistsDec 22-31: 6.0% of 124993 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Share of complete checklists reporting it, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

Frequency is the share of complete checklists in California that listed the bird, 2016–2025. It is not a head count, and it follows where and when people go birding. How to read it.

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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Where in California

Best counties

Share of checklists at the peak
  1. Alameda CountyBest the second week of August · 2561 checklists that week, 161,052 in all25%
  2. Imperial CountyBest early September · 387 checklists that week, 24,551 in all22%
  3. Napa CountyBest the second week of August · 283 checklists that week, 18,976 in all21%
  4. San Luis Obispo CountyBest mid August · 1981 checklists that week, 124,667 in all21%
  5. Humboldt CountyBest the second week of August · 1460 checklists that week, 95,963 in all21%
  6. Solano CountyBest the second week of July · 331 checklists that week, 25,325 in all21%

Best spots

Share of checklists at the peak
  1. Napa-Sonoma Marshes Wildlife AreaSolano County, best early September · 35 checklists that week, 671 in all96%
  2. Middle Harbor Shoreline ParkAlameda County, best early February · 45 checklists that week, 2,089 in all96%
  3. Shad ParkSan Mateo County, best late October · 43 checklists that week, 1,150 in all96%
  4. Elk RiverHumboldt County, best late August · 24 checklists that week, 655 in all95%
  5. San Lorenzo CreekAlameda County, best the second week of August · 35 checklists that week, 623 in all94%
  6. Morro Strand State BeachSan Luis Obispo County, best late March · 29 checklists that week, 2,064 in all94%

Busy spots report more of everything; compare the checklist counts before you drive anywhere.

Best time of day

In California, the Marbled Godwit is most often listed on checklists started between 1 and 3 pm (5.8% of those checklists).

0%2%4%6%12 am: too few checklists (1688) to judge1 am: too few checklists (1451) to judge2 am: too few checklists (1402) to judge3 am: too few checklists (1743) to judge4 am: too few checklists (4647) to judge5 am: too few checklists (32158) to judge6 am: 3.9% of 186053 checklists7 am: 4.5% of 444086 checklists8 am: 4.9% of 535846 checklists9 am: 5.2% of 486061 checklists10 am: 5.3% of 411130 checklists11 am: 5.3% of 325798 checklists12 pm: 5.4% of 269132 checklists1 pm: 5.9% of 244762 checklists2 pm: 5.6% of 235420 checklists3 pm: 5.4% of 232365 checklists4 pm: 4.6% of 208688 checklists5 pm: 4.1% of 146104 checklists6 pm: 3.4% of 96867 checklists7 pm: too few checklists (50942) to judge8 pm: too few checklists (14803) to judge9 pm: too few checklists (5561) to judge10 pm: too few checklists (3546) to judge11 pm: too few checklists (2092) to judge12a3a6a9a12p3p6p9p
Share of checklists started in each local hour that reported it. It reflects when people go birding as well as when birds are active. Grey hours have too few checklists (under 2% of the state’s, or under 200) to judge.
Week-by-week table
MonthDays 1-78-1415-2122-end
January6.6%6.6%6.6%5.8%
February5.8%5.1%4.6%5.6%
March5.2%4.8%4.8%4.4%
April4.1%4.0%4.0%3.1%
May2.2%1.8%1.5%1.4%
June1.3%1.4%1.3%1.8%
July3.1%4.7%5.8%6.4%
August6.6%7.5%7.8%7.7%
September7.4%6.6%5.7%5.3%
October5.4%5.5%5.6%5.9%
November5.8%5.9%5.8%6.1%
December6.0%5.9%4.6%6.0%

Neighboring states

  • Nevada: arrives early July, 1 week later than California
  • Utah: arrives late March, 12 weeks earlier than California
  • Idaho: arrives the second week of April, 10 weeks earlier than California
  • Washington: arrives the second week of July, 2 weeks later than California

Common questions

When do Marbled Godwits arrive in California?
Marbled Godwits reach California in late June, are common by the second week of July, peak in mid August (7.7% of checklists), and most are gone by mid April.
When do Marbled Godwits leave California?
Most Marbled Godwits have left California by mid April, when reports fall below half their usual rate. Stragglers are still reported until the second week of May.
When is the best time to see a Marbled Godwit in California?
The Marbled Godwit is reported most often in mid August, on about 7.7% of California checklists.
Where in California are Marbled Godwits seen most often?
By county, Alameda County, Imperial County, and Napa County have the highest peak reporting rates for the Marbled Godwit (counties with at least 200 checklists).