WhenToBird

Haliaeetus leucocephalus · Accipitridae

When Do Bald Eagles Arrive in Arizona?

Adult Bald Eagle
Photo: Marcel_Pepin, CC BY 4.0 via iNaturalist

Bald Eagles are winter birds in Arizona: they arrive in mid August, peak in early February (2.4% of checklists), and most are gone by the second week of July.

When to look

First arrivalsAug 15-21mid August
Common byAug 15-21mid August
PeakFeb 1-7early February
Most gone byJul 8-14the second week of July

Best: early February. First arrivals mid August; most are gone by the second week of July. Peak: on about 2.4% of Arizona checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprcommon
  5. Maycommon
  6. Juncommon
  7. Juluncommon
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novpeak season
  12. Decpeak season

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

0%1%2%3%Jan 1-7: 2.3% of 34758 checklistsJan 8-14: 2.2% of 29835 checklistsJan 15-21: 2.2% of 29279 checklistsJan 22-31: 2.3% of 39716 checklistsFeb 1-7: 2.5% of 27299 checklistsFeb 8-14: 2.4% of 28703 checklistsFeb 15-21: 2.2% of 35357 checklistsFeb 22-28: 2.2% of 29889 checklistsMar 1-7: 2.1% of 29932 checklistsMar 8-14: 2.0% of 32982 checklistsMar 15-21: 2.1% of 34731 checklistsMar 22-31: 1.8% of 50213 checklistsApr 1-7: 1.8% of 35788 checklistsApr 8-14: 1.7% of 38087 checklistsApr 15-21: 1.6% of 41520 checklistsApr 22-30: 1.6% of 55218 checklistsMay 1-7: 1.4% of 39688 checklistsMay 8-14: 1.4% of 39398 checklistsMay 15-21: 1.3% of 29562 checklistsMay 22-31: 1.1% of 36774 checklistsJun 1-7: 1.1% of 21313 checklistsJun 8-14: 0.9% of 19129 checklistsJun 15-21: 1.1% of 17922 checklistsJun 22-30: 1.0% of 21188 checklistsJul 1-7: 1.0% of 17325 checklistsJul 8-14: 0.8% of 16463 checklistsJul 15-21: 1.0% of 18642 checklistsJul 22-31: 0.8% of 31215 checklistsAug 1-7: 0.6% of 28163 checklistsAug 8-14: 0.6% of 31329 checklistsAug 15-21: 0.8% of 23878 checklistsAug 22-31: 1.2% of 28508 checklistsSep 1-7: 1.1% of 20878 checklistsSep 8-14: 1.3% of 19671 checklistsSep 15-21: 1.5% of 19859 checklistsSep 22-30: 1.5% of 25179 checklistsOct 1-7: 1.8% of 19420 checklistsOct 8-14: 1.8% of 21925 checklistsOct 15-21: 1.5% of 20995 checklistsOct 22-31: 1.8% of 29258 checklistsNov 1-7: 1.8% of 21269 checklistsNov 8-14: 2.0% of 22753 checklistsNov 15-21: 2.1% of 21982 checklistsNov 22-30: 2.0% of 29475 checklistsDec 1-7: 2.1% of 20810 checklistsDec 8-14: 2.2% of 22229 checklistsDec 15-21: 1.9% of 25148 checklistsDec 22-31: 1.8% of 39567 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 Arizona 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 Arizona

Best counties

Share of checklists at the peak
  1. Navajo CountyBest the second week of February · 251 checklists that week, 18,838 in all15%
  2. Apache CountyBest the second week of January · 113 checklists that week, 12,931 in all12%
  3. Gila CountyBest mid January · 187 checklists that week, 14,834 in all12%
  4. Coconino CountyBest the second week of January · 1052 checklists that week, 90,870 in all8.3%
  5. Yavapai CountyBest late January · 2202 checklists that week, 83,606 in all7.6%
  6. Maricopa CountyBest early February · 6628 checklists that week, 269,896 in all5.4%

Best spots

Share of checklists at the peak
  1. Tonto National Forest (north)Maricopa County, best late March · 28 checklists that week, 727 in all84%
  2. Tonto National Forest (northeast)Maricopa County, best mid March · 30 checklists that week, 505 in all78%
  3. Woods Canyon LakeCoconino County, best late May · 25 checklists that week, 287 in all78%
  4. Cottonwood WashNavajo County, best mid February · 21 checklists that week, 814 in all75%
  5. Upper Goldwater LakeYavapai County, best late January · 26 checklists that week, 690 in all72%
  6. Lower Lake MaryCoconino County, best mid March · 28 checklists that week, 569 in all67%

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

Best time of day

In Arizona, the Bald Eagle is most often listed on checklists started between 9 and 11 am (1.9% of those checklists).

0%0.5%1%1.5%2%12 am: too few checklists (488) to judge1 am: too few checklists (503) to judge2 am: too few checklists (489) to judge3 am: too few checklists (735) to judge4 am: too few checklists (4115) to judge5 am: 1.9% of 38350 checklists6 am: 1.5% of 118786 checklists7 am: 1.7% of 183415 checklists8 am: 1.8% of 187346 checklists9 am: 2.0% of 151342 checklists10 am: 1.9% of 124522 checklists11 am: 1.7% of 97088 checklists12 pm: 1.7% of 78110 checklists1 pm: 1.6% of 73059 checklists2 pm: 1.6% of 68912 checklists3 pm: 1.6% of 68060 checklists4 pm: 1.4% of 69387 checklists5 pm: 1.0% of 52951 checklists6 pm: 0.6% of 31061 checklists7 pm: too few checklists (16076) to judge8 pm: too few checklists (5352) to judge9 pm: too few checklists (2369) to judge10 pm: too few checklists (1100) to judge11 pm: too few checklists (604) 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
January2.3%2.2%2.2%2.3%
February2.5%2.4%2.2%2.2%
March2.1%2.0%2.1%1.8%
April1.8%1.7%1.6%1.6%
May1.4%1.4%1.3%1.1%
June1.1%0.9%1.1%1.0%
July1.0%0.8%1.0%0.8%
August0.6%0.6%0.8%1.2%
September1.1%1.3%1.5%1.5%
October1.8%1.8%1.5%1.8%
November1.8%2.0%2.1%2.0%
December2.1%2.2%1.9%1.8%

Neighboring states

  • New Mexico: arrives early November, 10 weeks later than Arizona
  • Nevada: arrives late October, 9 weeks later than Arizona
  • Utah: arrives mid July, 4 weeks earlier than Arizona
  • California: arrives the second week of October, 7 weeks later than Arizona

Common questions

When do Bald Eagles arrive in Arizona?
Bald Eagles are winter birds in Arizona: they arrive in mid August, peak in early February (2.4% of checklists), and most are gone by the second week of July.
When do Bald Eagles leave Arizona?
Most Bald Eagles have left Arizona by the second week of July, when reports fall below half their usual rate.
When is the best time to see a Bald Eagle in Arizona?
The Bald Eagle is reported most often in early February, on about 2.4% of Arizona checklists.
Where in Arizona are Bald Eagles seen most often?
By county, Navajo County, Apache County, and Gila County have the highest peak reporting rates for the Bald Eagle (counties with at least 200 checklists).