WhenToBird

Cardellina rubrifrons · Parulidae

When Do Red-faced Warblers Arrive in Arizona?

Adult Red-faced Warbler
Photo: sprcrkwild, CC BY 4.0 via iNaturalist

Red-faced Warblers reach Arizona in the second week of April, are common by mid April, peak in early June (4.9% of checklists), and most are gone by late August.

When to look

First arrivalsApr 8-14the second week of April
Common byApr 15-21mid April
PeakJun 1-7early June
Most gone byAug 22-31late August

Best: early June. First arrivals the second week of April; most are gone by late August. Peak: on about 4.9% of Arizona checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Aprcommon
  5. Maypeak season
  6. Junpeak season
  7. Julcommon
  8. Augcommon
  9. Sepuncommon
  10. Octnot usually seen
  11. Novnot usually seen
  12. Decnot usually seen

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

0%2%4%6%Jan 1-7: 0.1% of 34758 checklistsJan 8-14: 0.1% of 29835 checklistsJan 15-21: 0.1% of 29279 checklistsJan 22-31: 0% of 39716 checklistsFeb 1-7: 0% of 27299 checklistsFeb 8-14: 0% of 28703 checklistsFeb 15-21: 0% of 35357 checklistsFeb 22-28: 0% of 29889 checklistsMar 1-7: 0% of 29932 checklistsMar 8-14: 0% of 32982 checklistsMar 15-21: 0% of 34731 checklistsMar 22-31: 0.1% of 50213 checklistsApr 1-7: 0.1% of 35788 checklistsApr 8-14: 1.1% of 38087 checklistsApr 15-21: 2.7% of 41520 checklistsApr 22-30: 3.9% of 55218 checklistsMay 1-7: 4.2% of 39688 checklistsMay 8-14: 4.3% of 39398 checklistsMay 15-21: 4.6% of 29562 checklistsMay 22-31: 5.0% of 36774 checklistsJun 1-7: 4.7% of 21313 checklistsJun 8-14: 4.8% of 19129 checklistsJun 15-21: 4.3% of 17922 checklistsJun 22-30: 3.4% of 21188 checklistsJul 1-7: 2.6% of 17325 checklistsJul 8-14: 2.4% of 16463 checklistsJul 15-21: 2.2% of 18642 checklistsJul 22-31: 2.5% of 31215 checklistsAug 1-7: 3.2% of 28163 checklistsAug 8-14: 4.0% of 31329 checklistsAug 15-21: 3.1% of 23878 checklistsAug 22-31: 1.8% of 28508 checklistsSep 1-7: 0.6% of 20878 checklistsSep 8-14: 0.1% of 19671 checklistsSep 15-21: 0.1% of 19859 checklistsSep 22-30: 0.1% of 25179 checklistsOct 1-7: 0% of 19420 checklistsOct 8-14: 0.1% of 21925 checklistsOct 15-21: 0% of 20995 checklistsOct 22-31: 0% of 29258 checklistsNov 1-7: 0% of 21269 checklistsNov 8-14: 0.1% of 22753 checklistsNov 15-21: 0% of 21982 checklistsNov 22-30: 0.1% of 29475 checklistsDec 1-7: 0.1% of 20810 checklistsDec 8-14: 0.1% of 22229 checklistsDec 15-21: 0% of 25148 checklistsDec 22-31: 0.1% 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.

Embed this map on your site

Where in Arizona

Best counties

Share of checklists at the peak
  1. Graham CountyBest early June · 131 checklists that week, 9,876 in all12%
  2. Greenlee CountyBest the second week of June · 95 checklists that week, 2,745 in all9.6%
  3. Coconino CountyBest early June · 2427 checklists that week, 90,870 in all8.7%
  4. Cochise CountyBest mid May · 6067 checklists that week, 190,093 in all7.3%
  5. Gila CountyBest the second week of May · 760 checklists that week, 14,834 in all6.4%
  6. Pima CountyBest early June · 5530 checklists that week, 437,722 in all6.3%

Best spots

Share of checklists at the peak
  1. Marshall GulchPima County, best early June · 42 checklists that week, 1,427 in all91%
  2. Catalina Highway Scenic Area (Kellogg Mountain)Pima County, best early May · 116 checklists that week, 1,879 in all86%
  3. Butterfly SpringYavapai County, best the second week of August · 36 checklists that week, 550 in all84%
  4. Soldier CampPima County, best the second week of May · 31 checklists that week, 468 in all80%
  5. Miller Peak Wilderness (Pat Scott Canyon)Cochise County, best mid April · 21 checklists that week, 195 in all80%
  6. Bear Wallow SpringPima County, best the second week of June · 26 checklists that week, 810 in all79%

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

Best time of day

In Arizona, the Red-faced Warbler is most often listed on checklists started between 5 and 7 am (1.7% 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: 2.0% of 38350 checklists6 am: 1.6% of 118786 checklists7 am: 1.7% of 183415 checklists8 am: 1.7% of 187346 checklists9 am: 1.7% of 151342 checklists10 am: 1.7% of 124522 checklists11 am: 1.5% of 97088 checklists12 pm: 1.5% of 78110 checklists1 pm: 1.3% of 73059 checklists2 pm: 1.1% of 68912 checklists3 pm: 0.8% of 68060 checklists4 pm: 0.6% of 69387 checklists5 pm: 0.5% of 52951 checklists6 pm: 0.4% 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
January0.1%0.1%0.1%0%
February0%0%0%0%
March0%0%0%0.1%
April0.1%1.1%2.7%3.9%
May4.2%4.3%4.6%5.0%
June4.7%4.8%4.3%3.4%
July2.6%2.4%2.2%2.5%
August3.2%4.0%3.1%1.8%
September0.6%0.1%0.1%0.1%
October0%0.1%0%0%
November0%0.1%0%0.1%
December0.1%0.1%0%0.1%

Common questions

When do Red-faced Warblers arrive in Arizona?
Red-faced Warblers reach Arizona in the second week of April, are common by mid April, peak in early June (4.9% of checklists), and most are gone by late August.
When do Red-faced Warblers leave Arizona?
Most Red-faced Warblers have left Arizona by late August, when reports fall below half their usual rate.
When is the best time to see a Red-faced Warbler in Arizona?
The Red-faced Warbler is reported most often in early June, on about 4.9% of Arizona checklists.
Where in Arizona are Red-faced Warblers seen most often?
By county, Graham County, Greenlee County, and Coconino County have the highest peak reporting rates for the Red-faced Warbler (counties with at least 200 checklists).