Blackpoll Warblers mostly pass through South Dakota: the first show up in early May, they are common by the second week of May, peak in mid May (7.2% of checklists), and most are gone by late May.
When to look
First arrivalsMay 1-7early May
Common byMay 8-14the second week of May
PeakMay 15-21mid May
Most gone byMay 22-31late May
Best: mid May. First arrivals early May; most are gone by late May. Peak: on about 7.2% of South Dakota checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Aprrare
Maypeak season
Jununcommon
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 South Dakota 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.
Hyde CountyBest mid May · 18 checklists that week, 241 in all24%
Union CountyBest the second week of May · 69 checklists that week, 882 in all22%
Edmunds CountyBest mid May · 29 checklists that week, 466 in all20%
Hughes CountyBest mid May · 116 checklists that week, 3,765 in all18%
Codington CountyBest mid May · 65 checklists that week, 1,303 in all17%
Grant CountyBest late May · 24 checklists that week, 414 in all16%
Best spots
Share of checklists at the peak
Union GroveUnion County, best the second week of May · 25 checklists that week, 168 in all43%
Bramble ParkCodington County, best mid May · 21 checklists that week, 280 in all36%
PerryMinnehaha County, best mid May · 28 checklists that week, 215 in all33%
SertomaMinnehaha County, best mid May · 52 checklists that week, 764 in all29%
Moccasin Creek ComplexBrown County, best mid May · 22 checklists that week, 209 in all29%
Dakota Nature ParkBrookings County, best late May · 55 checklists that week, 1,079 in all28%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In South Dakota, the Blackpoll Warbler is most often listed on checklists started between 6 and 8 am (2.1% 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%
0.1%
May
0.8%
7.4%
11%
3.6%
June
0.1%
0%
0%
0%
July
0%
0%
0%
0%
August
0.1%
0.1%
0%
0.3%
September
0.5%
0.6%
0.2%
0.1%
October
0.1%
0%
0%
0%
November
0%
0%
0%
0%
December
0%
0%
0%
0%
Neighboring states
Nebraska: arrives early May, in the same week than South Dakota
North Dakota: arrives early May, in the same week than South Dakota
Minnesota: arrives early May, in the same week than South Dakota
Iowa: arrives early May, in the same week than South Dakota
Common questions
When do Blackpoll Warblers arrive in South Dakota?
Blackpoll Warblers mostly pass through South Dakota: the first show up in early May, they are common by the second week of May, peak in mid May (7.2% of checklists), and most are gone by late May.
When do Blackpoll Warblers leave South Dakota?
Most Blackpoll Warblers have left South Dakota by late May, when reports fall below half their usual rate. Stragglers are still reported until early June.
When is the best time to see a Blackpoll Warbler in South Dakota?
The Blackpoll Warbler is reported most often in mid May, on about 7.2% of South Dakota checklists.
Where in South Dakota are Blackpoll Warblers seen most often?
By county, Hyde County, Union County, and Edmunds County have the highest peak reporting rates for the Blackpoll Warbler (counties with at least 200 checklists).