Prothonotary Warblers reach Alabama in mid March, are common by late March, peak in mid April (11% of checklists), and most are gone by late June.
When to look
First arrivalsMar 15-21mid March
Common byMar 22-31late March
PeakApr 15-21mid April
Most gone byJun 22-30late June
Best: mid April. First arrivals mid March; most are gone by late June. Peak: on about 11% of Alabama checklists.
Jannot usually seen
Febnot usually seen
Maruncommon
Aprpeak season
Maycommon
Juncommon
Juluncommon
Auguncommon
Sepuncommon
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 Alabama 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 Alabama, the Prothonotary Warbler is most often listed on checklists started between 6 and 8 am (3.2% 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%
0.1%
March
0%
0.2%
1.0%
3.1%
April
6.4%
12%
12%
8.0%
May
6.8%
6.6%
7.5%
6.6%
June
6.2%
4.7%
5.2%
4.0%
July
2.7%
2.2%
1.4%
2.0%
August
1.5%
1.4%
1.9%
1.8%
September
2.0%
1.9%
0.9%
0.5%
October
0.4%
0.2%
0.1%
0.1%
November
0%
0%
0%
0%
December
0%
0%
0%
0%
Neighboring states
Mississippi: arrives mid March, in the same week than Alabama
Georgia: arrives early April, 2 weeks later than Alabama
Tennessee: arrives early April, 2 weeks later than Alabama
Louisiana: arrives the second week of March, 1 week earlier than Alabama
Common questions
When do Prothonotary Warblers arrive in Alabama?
Prothonotary Warblers reach Alabama in mid March, are common by late March, peak in mid April (11% of checklists), and most are gone by late June.
When do Prothonotary Warblers leave Alabama?
Most Prothonotary Warblers have left Alabama by late June, when reports fall below half their usual rate. Stragglers are still reported until mid September.
When is the best time to see a Prothonotary Warbler in Alabama?
The Prothonotary Warbler is reported most often in mid April, on about 11% of Alabama checklists.
Where in Alabama are Prothonotary Warblers seen most often?
By county, Choctaw County, Greene County, and Limestone County have the highest peak reporting rates for the Prothonotary Warbler (counties with at least 200 checklists).