WhenToBird

Setophaga caerulescens · Parulidae

When Do Black-throated Blue Warblers Arrive in Georgia?

Adult male Black-throated Blue Warbler
Photo: Dan Vickers, CC BY 4.0 via iNaturalist

Black-throated Blue Warblers mostly pass through Georgia: they arrive in the second week of April, peak in early May (4.5% of checklists), and most are gone by early July.

When to look

First arrivalsApr 8-14the second week of April
Common byApr 8-14the second week of April
PeakMay 1-7early May
Most gone byJul 1-7early July

Best: early May. First arrivals the second week of April; most are gone by early July. Peak: on about 4.5% of Georgia checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Aprpeak season
  5. Maypeak season
  6. Junrare
  7. Julrare
  8. Augnot usually seen
  9. Sepuncommon
  10. Octcommon
  11. Novrare
  12. Decnot usually seen

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

0%2%4%6%Jan 1-7: 0.1% of 22238 checklistsJan 8-14: 0.1% of 16390 checklistsJan 15-21: 0.1% of 16779 checklistsJan 22-31: 0.1% of 22964 checklistsFeb 1-7: 0.1% of 16870 checklistsFeb 8-14: 0.1% of 19486 checklistsFeb 15-21: 0.1% of 28540 checklistsFeb 22-28: 0.1% of 17005 checklistsMar 1-7: 0.1% of 15920 checklistsMar 8-14: 0.1% of 16274 checklistsMar 15-21: 0.1% of 16432 checklistsMar 22-31: 0.1% of 25318 checklistsApr 1-7: 0.1% of 19292 checklistsApr 8-14: 0.7% of 19742 checklistsApr 15-21: 1.8% of 21498 checklistsApr 22-30: 5.7% of 29736 checklistsMay 1-7: 5.0% of 20858 checklistsMay 8-14: 2.1% of 20346 checklistsMay 15-21: 1.3% of 15859 checklistsMay 22-31: 0.9% of 19867 checklistsJun 1-7: 0.5% of 13467 checklistsJun 8-14: 0.4% of 12812 checklistsJun 15-21: 0.7% of 11379 checklistsJun 22-30: 0.4% of 14121 checklistsJul 1-7: 0.3% of 11176 checklistsJul 8-14: 0.2% of 10695 checklistsJul 15-21: 0.2% of 10655 checklistsJul 22-31: 0.1% of 15106 checklistsAug 1-7: 0.1% of 10650 checklistsAug 8-14: 0.1% of 10247 checklistsAug 15-21: 0.1% of 10371 checklistsAug 22-31: 0.1% of 15203 checklistsSep 1-7: 0.2% of 13007 checklistsSep 8-14: 0.4% of 12541 checklistsSep 15-21: 1.1% of 12943 checklistsSep 22-30: 1.3% of 17655 checklistsOct 1-7: 2.0% of 14646 checklistsOct 8-14: 2.9% of 15836 checklistsOct 15-21: 2.7% of 13124 checklistsOct 22-31: 1.3% of 15859 checklistsNov 1-7: 0.3% of 11711 checklistsNov 8-14: 0.1% of 11587 checklistsNov 15-21: 0.1% of 12025 checklistsNov 22-30: 0% of 16431 checklistsDec 1-7: 0.1% of 11256 checklistsDec 8-14: 0.1% of 11967 checklistsDec 15-21: 0.1% of 15618 checklistsDec 22-31: 0.1% of 22453 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 Georgia 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 Georgia

Best counties

Share of checklists at the peak
  1. Union CountyBest late May · 242 checklists that week, 3,649 in all38%
  2. Towns CountyBest late May · 161 checklists that week, 3,636 in all19%
  3. Twiggs CountyBest late April · 15 checklists that week, 497 in all15%
  4. Camden CountyBest the second week of October · 233 checklists that week, 10,650 in all15%
  5. Washington CountyBest mid April · 19 checklists that week, 523 in all13%
  6. Clarke CountyBest early May · 892 checklists that week, 35,133 in all13%

Best spots

Share of checklists at the peak
  1. Chattahoochee National Forest (Wolfpen Gap)Union County, best mid May · 41 checklists that week, 306 in all91%
  2. Brasstown BaldUnion County, best early May · 38 checklists that week, 560 in all85%
  3. Chattahoochee National Forest (Brasstown Bald)Towns County, best early May · 24 checklists that week, 155 in all76%
  4. Pendleton King ParkRichmond County, best late April · 22 checklists that week, 227 in all55%
  5. Henderson ParkDeKalb County, best early May · 189 checklists that week, 2,738 in all46%
  6. Jekyll Island State ParkGlynn County, best early October · 77 checklists that week, 1,760 in all44%

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

Best time of day

In Georgia, the Black-throated Blue Warbler is most often listed on checklists started between 6 and 8 am (1.6% of those checklists).

0%0.5%1%1.5%2%12 am: too few checklists (334) to judge1 am: too few checklists (277) to judge2 am: too few checklists (264) to judge3 am: too few checklists (282) to judge4 am: too few checklists (463) to judge5 am: too few checklists (1513) to judge6 am: 1.6% of 16790 checklists7 am: 1.5% of 73569 checklists8 am: 1.1% of 104956 checklists9 am: 0.9% of 96241 checklists10 am: 0.8% of 81903 checklists11 am: 0.7% of 66236 checklists12 pm: 0.7% of 56159 checklists1 pm: 0.6% of 48260 checklists2 pm: 0.6% of 46435 checklists3 pm: 0.6% of 46015 checklists4 pm: 0.5% of 47438 checklists5 pm: 0.5% of 38866 checklists6 pm: 0.3% of 26032 checklists7 pm: 0.1% of 16610 checklists8 pm: too few checklists (5490) to judge9 pm: too few checklists (995) to judge10 pm: too few checklists (517) to judge11 pm: too few checklists (310) 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%0.1%
February0.1%0.1%0.1%0.1%
March0.1%0.1%0.1%0.1%
April0.1%0.7%1.8%5.7%
May5.0%2.1%1.3%0.9%
June0.5%0.4%0.7%0.4%
July0.3%0.2%0.2%0.1%
August0.1%0.1%0.1%0.1%
September0.2%0.4%1.1%1.3%
October2.0%2.9%2.7%1.3%
November0.3%0.1%0.1%0%
December0.1%0.1%0.1%0.1%

Neighboring states

  • South Carolina: arrives the second week of April, in the same week than Georgia
  • Tennessee: arrives mid April, 1 week later than Georgia
  • North Carolina: arrives the second week of April, in the same week than Georgia
  • Kentucky: arrives late April, 2 weeks later than Georgia

Common questions

When do Black-throated Blue Warblers arrive in Georgia?
Black-throated Blue Warblers mostly pass through Georgia: they arrive in the second week of April, peak in early May (4.5% of checklists), and most are gone by early July.
When do Black-throated Blue Warblers leave Georgia?
Most Black-throated Blue Warblers have left Georgia by early July, when reports fall below half their usual rate.
When is the best time to see a Black-throated Blue Warbler in Georgia?
The Black-throated Blue Warbler is reported most often in early May, on about 4.5% of Georgia checklists.
Where in Georgia are Black-throated Blue Warblers seen most often?
By county, Union County, Towns County, and Twiggs County have the highest peak reporting rates for the Black-throated Blue Warbler (counties with at least 200 checklists).