WhenToBird

Bucephala islandica · Anatidae

When Do Barrow's Goldeneyes Arrive in Utah?

Adult male Barrow's Goldeneye
Photo: Kevin Krebs, CC BY 4.0 via iNaturalist

Barrow's Goldeneyes are winter birds in Utah: they arrive in the second week of November, peak in the second week of January (2.4% of checklists), and most are gone by the second week of March.

When to look

First arrivalsNov 8-14the second week of November
Common byNov 8-14the second week of November
PeakJan 8-14the second week of January
Most gone byMar 8-14the second week of March

Best: the second week of January. First arrivals the second week of November; most are gone by the second week of March. Peak: on about 2.4% of Utah checklists.

  1. Janpeak season
  2. Febcommon
  3. Marcommon
  4. Apruncommon
  5. Maynot usually seen
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepnot usually seen
  10. Octrare
  11. Novcommon
  12. Decpeak season

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

0%1%2%3%Jan 1-7: 2.8% of 10857 checklistsJan 8-14: 2.3% of 8333 checklistsJan 15-21: 2.1% of 8360 checklistsJan 22-31: 1.7% of 10516 checklistsFeb 1-7: 1.2% of 7416 checklistsFeb 8-14: 1.3% of 8082 checklistsFeb 15-21: 1.4% of 9643 checklistsFeb 22-28: 1.2% of 7960 checklistsMar 1-7: 1.2% of 7998 checklistsMar 8-14: 0.9% of 8581 checklistsMar 15-21: 0.6% of 8637 checklistsMar 22-31: 0.5% of 13006 checklistsApr 1-7: 0.6% of 10562 checklistsApr 8-14: 0.3% of 11694 checklistsApr 15-21: 0.2% of 11382 checklistsApr 22-30: 0.1% of 16626 checklistsMay 1-7: 0.1% of 13523 checklistsMay 8-14: 0% of 14714 checklistsMay 15-21: 0% of 13711 checklistsMay 22-31: 0.1% of 16546 checklistsJun 1-7: 0.1% of 10284 checklistsJun 8-14: 0.1% of 9530 checklistsJun 15-21: 0.1% of 8854 checklistsJun 22-30: 0.1% of 10566 checklistsJul 1-7: 0.1% of 7987 checklistsJul 8-14: 0.1% of 7471 checklistsJul 15-21: 0.1% of 7240 checklistsJul 22-31: 0.1% of 9329 checklistsAug 1-7: 0.1% of 6521 checklistsAug 8-14: 0% of 6423 checklistsAug 15-21: 0.1% of 6208 checklistsAug 22-31: 0.1% of 9089 checklistsSep 1-7: 0.1% of 7081 checklistsSep 8-14: 0.1% of 7306 checklistsSep 15-21: 0.1% of 7208 checklistsSep 22-30: 0.1% of 8876 checklistsOct 1-7: 0.1% of 7265 checklistsOct 8-14: 0.1% of 7226 checklistsOct 15-21: 0.1% of 7007 checklistsOct 22-31: 0.2% of 8443 checklistsNov 1-7: 0.6% of 6711 checklistsNov 8-14: 1.1% of 6290 checklistsNov 15-21: 1.5% of 6169 checklistsNov 22-30: 1.7% of 8228 checklistsDec 1-7: 1.5% of 6011 checklistsDec 8-14: 1.7% of 6044 checklistsDec 15-21: 1.1% of 6721 checklistsDec 22-31: 1.3% of 9982 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 Utah 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 Utah

Best counties

Share of checklists at the peak
  1. Cache CountyBest the second week of January · 447 checklists that week, 21,769 in all11%
  2. Wasatch CountyBest late February · 113 checklists that week, 7,780 in all9.6%
  3. Morgan CountyBest mid November · 29 checklists that week, 3,178 in all4.8%
  4. Rich CountyBest early January · 10 checklists that week, 1,563 in all4.7%
  5. Salt Lake CountyBest the second week of January · 2548 checklists that week, 104,432 in all3.9%
  6. Tooele CountyBest the second week of January · 75 checklists that week, 4,788 in all3.6%

Best spots

Share of checklists at the peak
  1. Canyon Entrance ParkCache County, best early December · 20 checklists that week, 767 in all98%
  2. Western Pacific AdditionSalt Lake County, best mid January · 41 checklists that week, 852 in all83%
  3. Mill CreekSalt Lake County, best the second week of January · 29 checklists that week, 999 in all66%
  4. Mt. Timpanogos ParkUtah County, best the second week of January · 20 checklists that week, 634 in all47%
  5. Benjamin SloughUtah County, best late November · 58 checklists that week, 1,077 in all16%

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

Best time of day

In Utah, the Barrow's Goldeneye is most often listed on checklists started between 1 and 3 pm (0.9% of those checklists).

0%0.5%1%12 am: too few checklists (242) to judge1 am: too few checklists (178) to judge2 am: too few checklists (169) to judge3 am: too few checklists (162) to judge4 am: too few checklists (284) to judge5 am: too few checklists (1984) to judge6 am: 0.1% of 11714 checklists7 am: 0.2% of 33209 checklists8 am: 0.4% of 46944 checklists9 am: 0.5% of 46290 checklists10 am: 0.6% of 43144 checklists11 am: 0.8% of 36893 checklists12 pm: 0.8% of 32758 checklists1 pm: 0.9% of 30142 checklists2 pm: 0.8% of 29414 checklists3 pm: 0.9% of 29491 checklists4 pm: 0.9% of 29154 checklists5 pm: 0.5% of 22256 checklists6 pm: 0.1% of 17383 checklists7 pm: 0.1% of 13099 checklists8 pm: too few checklists (6647) to judge9 pm: too few checklists (1753) to judge10 pm: too few checklists (599) to judge11 pm: too few checklists (307) 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
January2.8%2.3%2.1%1.7%
February1.2%1.3%1.4%1.2%
March1.2%0.9%0.6%0.5%
April0.6%0.3%0.2%0.1%
May0.1%0%0%0.1%
June0.1%0.1%0.1%0.1%
July0.1%0.1%0.1%0.1%
August0.1%0%0.1%0.1%
September0.1%0.1%0.1%0.1%
October0.1%0.1%0.1%0.2%
November0.6%1.1%1.5%1.7%
December1.5%1.7%1.1%1.3%

Neighboring states

  • Wyoming: year-round, peaks the second week of November
  • Nevada: arrives mid November, 1 week later than Utah
  • Colorado: arrives early November, 1 week earlier than Utah
  • Idaho: arrives late October, 2 weeks earlier than Utah

Common questions

When do Barrow's Goldeneyes arrive in Utah?
Barrow's Goldeneyes are winter birds in Utah: they arrive in the second week of November, peak in the second week of January (2.4% of checklists), and most are gone by the second week of March.
When do Barrow's Goldeneyes leave Utah?
Most Barrow's Goldeneyes have left Utah by the second week of March, when reports fall below half their usual rate.
When is the best time to see a Barrow's Goldeneye in Utah?
The Barrow's Goldeneye is reported most often in the second week of January, on about 2.4% of Utah checklists.
Where in Utah are Barrow's Goldeneyes seen most often?
By county, Cache County, Wasatch County, and Morgan County have the highest peak reporting rates for the Barrow's Goldeneye (counties with at least 200 checklists).