WhenToBird

Spatula clypeata · Anatidae

When Do Northern Shovelers Arrive in California?

Adult male Northern Shoveler
Photo: Chris O'Donoghue, CC BY 4.0 via iNaturalist

Northern Shovelers are winter birds in California: the first arrive in the second week of August, they are common by the second week of September, peak in the second week of January (14% of checklists), and most are gone by mid April.

When to look

First arrivalsAug 8-14the second week of August
Common bySep 8-14the second week of September
PeakJan 8-14the second week of January
Most gone byApr 15-21mid April

Best: the second week of January. First arrivals the second week of August; most are gone by mid April. Peak: on about 14% of California checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprcommon
  5. Mayuncommon
  6. Junrare
  7. Julrare
  8. Auguncommon
  9. Sepcommon
  10. Octcommon
  11. Novpeak season
  12. Decpeak season

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

0%5%10%15%Jan 1-7: 14% of 112336 checklistsJan 8-14: 14% of 85518 checklistsJan 15-21: 14% of 86488 checklistsJan 22-31: 13% of 116174 checklistsFeb 1-7: 12% of 75171 checklistsFeb 8-14: 11% of 84467 checklistsFeb 15-21: 10% of 105683 checklistsFeb 22-28: 11% of 83396 checklistsMar 1-7: 11% of 77470 checklistsMar 8-14: 10% of 75180 checklistsMar 15-21: 9.5% of 80770 checklistsMar 22-31: 8.4% of 114116 checklistsApr 1-7: 7.6% of 84057 checklistsApr 8-14: 6.5% of 83692 checklistsApr 15-21: 5.8% of 89242 checklistsApr 22-30: 4.1% of 114289 checklistsMay 1-7: 2.8% of 85728 checklistsMay 8-14: 1.7% of 91984 checklistsMay 15-21: 1.5% of 75478 checklistsMay 22-31: 1.3% of 106250 checklistsJun 1-7: 1.2% of 70051 checklistsJun 8-14: 1.0% of 67485 checklistsJun 15-21: 0.7% of 66269 checklistsJun 22-30: 0.7% of 79172 checklistsJul 1-7: 0.6% of 62877 checklistsJul 8-14: 0.5% of 60328 checklistsJul 15-21: 0.5% of 59705 checklistsJul 22-31: 0.6% of 83796 checklistsAug 1-7: 0.8% of 60215 checklistsAug 8-14: 1.4% of 60172 checklistsAug 15-21: 2.2% of 59877 checklistsAug 22-31: 3.7% of 89107 checklistsSep 1-7: 5.2% of 72000 checklistsSep 8-14: 5.4% of 71228 checklistsSep 15-21: 5.3% of 76808 checklistsSep 22-30: 5.8% of 100204 checklistsOct 1-7: 6.1% of 76571 checklistsOct 8-14: 7.4% of 80874 checklistsOct 15-21: 8.1% of 74581 checklistsOct 22-31: 9.2% of 97498 checklistsNov 1-7: 9.8% of 70851 checklistsNov 8-14: 10% of 72431 checklistsNov 15-21: 11% of 66767 checklistsNov 22-30: 12% of 94737 checklistsDec 1-7: 12% of 65393 checklistsDec 8-14: 12% of 67449 checklistsDec 15-21: 11% of 83421 checklistsDec 22-31: 12% 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. Colusa CountyBest late November · 251 checklists that week, 7,653 in all53%
  2. Glenn CountyBest mid March · 52 checklists that week, 5,189 in all50%
  3. Imperial CountyBest the second week of January · 778 checklists that week, 24,551 in all42%
  4. Merced CountyBest late February · 442 checklists that week, 13,095 in all38%
  5. Modoc CountyBest the second week of April · 66 checklists that week, 6,138 in all33%
  6. Lassen CountyBest the second week of April · 241 checklists that week, 8,378 in all31%

Best spots

Share of checklists at the peak
  1. Colusa National Wildlife RefugeColusa County, best mid March · 27 checklists that week, 1,370 in all100%
  2. Piute PondsLos Angeles County, best early January · 21 checklists that week, 1,269 in all100%
  3. Baylands Preserve (southwest)Santa Clara County, best the second week of March · 22 checklists that week, 1,377 in all99%
  4. North Central Valley Wildlife Management AreaButte County, best the second week of March · 23 checklists that week, 1,512 in all98%
  5. Colusa National Wildlife Refuge (Powell Slough)Colusa County, best late March · 26 checklists that week, 795 in all98%
  6. Baylands Preserve (west)Santa Clara County, best late December · 132 checklists that week, 1,519 in all98%

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

Best time of day

In California, the Northern Shoveler is most often listed on checklists started between 1 and 3 pm (8.8% of those checklists).

0%5%10%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: 4.4% of 186053 checklists7 am: 6.4% of 444086 checklists8 am: 7.3% of 535846 checklists9 am: 7.4% of 486061 checklists10 am: 7.8% of 411130 checklists11 am: 8.0% of 325798 checklists12 pm: 8.1% of 269132 checklists1 pm: 8.8% of 244762 checklists2 pm: 8.7% of 235420 checklists3 pm: 8.4% of 232365 checklists4 pm: 7.0% of 208688 checklists5 pm: 4.9% 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
January14%14%14%13%
February12%11%10%11%
March11%10%9.5%8.4%
April7.6%6.5%5.8%4.1%
May2.8%1.7%1.5%1.3%
June1.2%1.0%0.7%0.7%
July0.6%0.5%0.5%0.6%
August0.8%1.4%2.2%3.7%
September5.2%5.4%5.3%5.8%
October6.1%7.4%8.1%9.2%
November9.8%10%11%12%
December12%12%11%12%

Neighboring states

  • Nevada: arrives late July, 2 weeks earlier than California
  • Utah: arrives the second week of August, in the same week than California
  • Arizona: arrives the second week of August, in the same week than California
  • Oregon: arrives the second week of July, 4 weeks earlier than California

Common questions

When do Northern Shovelers arrive in California?
Northern Shovelers are winter birds in California: the first arrive in the second week of August, they are common by the second week of September, peak in the second week of January (14% of checklists), and most are gone by mid April.
When do Northern Shovelers leave California?
Most Northern Shovelers have left California by mid April, when reports fall below half their usual rate. Stragglers are still reported until early June.
When is the best time to see a Northern Shoveler in California?
The Northern Shoveler is reported most often in the second week of January, on about 14% of California checklists.
Where in California are Northern Shovelers seen most often?
By county, Colusa County, Glenn County, and Imperial County have the highest peak reporting rates for the Northern Shoveler (counties with at least 200 checklists).