Blackpoll Warblers mostly pass through Kentucky: the first show up in mid April, they are common by late April, peak in the second week of May (8.4% of checklists), and most are gone by mid May.
When to look
First arrivalsApr 15-21mid April
Common byApr 22-30late April
PeakMay 8-14the second week of May
Most gone byMay 15-21mid May
Best: the second week of May. First arrivals mid April; most are gone by mid May. Peak: on about 8.4% of Kentucky checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Aprcommon
Maypeak season
Junrare
Julnot usually seen
Augnot usually seen
Seprare
Octnot usually seen
Novnot usually seen
Decnot usually seen
Darker months: more checklists report it. Outlined: peak month.
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 Kentucky 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
0%few checklistsno data
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.
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Kentucky, the Blackpoll Warbler is most often listed on checklists started between 6 and 8 am (2.3% of those checklists).
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
Month
Days 1-7
8-14
15-21
22-end
January
0%
0%
0%
0%
February
0%
0%
0%
0%
March
0%
0%
0%
0%
April
0%
0%
0.1%
2.8%
May
8.6%
9.8%
5.9%
0.9%
June
0%
0%
0%
0%
July
0%
0%
0%
0%
August
0%
0%
0%
0.1%
September
0.1%
0.2%
0.3%
0.4%
October
0.3%
0.2%
0%
0.1%
November
0.1%
0%
0%
0%
December
0%
0%
0%
0%
Neighboring states
Tennessee: arrives mid April, in the same week than Kentucky
Indiana: arrives late April, 1 week later than Kentucky
Ohio: arrives late April, 1 week later than Kentucky
Illinois: arrives mid August, 16 weeks later than Kentucky
Common questions
When do Blackpoll Warblers arrive in Kentucky?
Blackpoll Warblers mostly pass through Kentucky: the first show up in mid April, they are common by late April, peak in the second week of May (8.4% of checklists), and most are gone by mid May.
When do Blackpoll Warblers leave Kentucky?
Most Blackpoll Warblers have left Kentucky by mid May, when reports fall below half their usual rate. Stragglers are still reported until late May.
When is the best time to see a Blackpoll Warbler in Kentucky?
The Blackpoll Warbler is reported most often in the second week of May, on about 8.4% of Kentucky checklists.
Where in Kentucky are Blackpoll Warblers seen most often?
By county, Lyon County, Wayne County, and Larue County have the highest peak reporting rates for the Blackpoll Warbler (counties with at least 200 checklists).