Yellow-rumped Warblers reach South Dakota in early April, are common by the second week of April, peak in early May (26% of checklists), and most are gone by late October.
When to look
First arrivalsApr 1-7early April
Common byApr 8-14the second week of April
PeakMay 1-7early May
Most gone byOct 22-31late October
Best: early May. First arrivals early April; most are gone by late October. Peak: on about 26% of South Dakota checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Aprpeak season
Maypeak season
Jununcommon
Juluncommon
Auguncommon
Seppeak season
Octpeak season
Novrare
Decrare
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.
Union CountyBest mid October · 11 checklists that week, 882 in all70%
Sanborn CountyBest early October · 31 checklists that week, 748 in all56%
Stanley CountyBest early May · 88 checklists that week, 2,615 in all54%
Hughes CountyBest early October · 72 checklists that week, 3,765 in all54%
Clay CountyBest early October · 45 checklists that week, 2,633 in all49%
Hyde CountyBest the second week of May · 13 checklists that week, 241 in all47%
Best spots
Share of checklists at the peak
Bramble ParkCodington County, best late April · 23 checklists that week, 280 in all93%
Farm IslandHughes County, best late September · 25 checklists that week, 825 in all81%
Oaha Recreation AreaStanley County, best early May · 20 checklists that week, 247 in all80%
Black Elk WildernessCuster County, best early June · 25 checklists that week, 160 in all76%
Moccasin Creek ComplexBrown County, best the second week of May · 38 checklists that week, 209 in all75%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In South Dakota, the Yellow-rumped Warbler is most often listed on checklists started between 6 and 8 am (12% 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
0.5%
0.5%
0.3%
0.2%
February
0.7%
0.2%
0.2%
0.2%
March
0.1%
0.1%
0.3%
0.2%
April
1.1%
3.5%
9.8%
21%
May
30%
27%
15%
8.9%
June
11%
9.1%
8.8%
9.9%
July
8.7%
7.9%
5.9%
2.3%
August
2.3%
2.5%
3.9%
3.9%
September
5.7%
7.5%
11%
22%
October
27%
23%
14%
6.7%
November
2.3%
1.1%
1.3%
1.3%
December
0.9%
1.4%
1.7%
0.7%
Neighboring states
Nebraska: arrives early September, 20 weeks later than South Dakota
North Dakota: arrives late August, 19 weeks later than South Dakota
Minnesota: arrives early April, in the same week than South Dakota
Iowa: arrives early September, 20 weeks later than South Dakota
Common questions
When do Yellow-rumped Warblers arrive in South Dakota?
Yellow-rumped Warblers reach South Dakota in early April, are common by the second week of April, peak in early May (26% of checklists), and most are gone by late October.
When do Yellow-rumped Warblers leave South Dakota?
Most Yellow-rumped Warblers have left South Dakota by late October, when reports fall below half their usual rate. Stragglers are still reported until mid December.
When is the best time to see a Yellow-rumped Warbler in South Dakota?
The Yellow-rumped Warbler is reported most often in early May, on about 26% of South Dakota checklists.
Where in South Dakota are Yellow-rumped Warblers seen most often?
By county, Union County, Sanborn County, and Stanley County have the highest peak reporting rates for the Yellow-rumped Warbler (counties with at least 200 checklists).