Clark's Nutcrackers arrive in South Dakota in early June, peak in the second week of September (1.1% of checklists), and most are gone by early October.
When to look
First arrivalsJun 1-7early June
Common byJun 1-7early June
PeakSep 8-14the second week of September
Most gone byOct 1-7early October
Best: the second week of September. First arrivals early June; most are gone by early October. Peak: on about 1.1% of South Dakota checklists.
Janrare
Febrare
Marrare
Aprnot usually seen
Mayuncommon
Juncommon
Julcommon
Augpeak season
Seppeak season
Octuncommon
Novrare
Decuncommon
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.
Custer CountyBest the second week of December · 12 checklists that week, 7,902 in all8.3%
Meade CountyBest the second week of October · 16 checklists that week, 1,338 in all5.4%
Lawrence CountyBest late October · 44 checklists that week, 3,847 in all2.5%
Pennington CountyBest the second week of September · 339 checklists that week, 12,603 in all1.5%
Best spots
Share of checklists at the peak
Black Elk WildernessCuster County, best early June · 25 checklists that week, 160 in all24%
Sylvan LakeCuster County, best late August · 23 checklists that week, 506 in all17%
Jewel Cave National MonumentCuster County, best the second week of July · 20 checklists that week, 308 in all9.8%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In South Dakota, the Clark's Nutcracker is most often listed on checklists started between 6 and 8 am (0.5% 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%
0.1%
0%
0.1%
February
0%
0%
0.1%
0.1%
March
0%
0.1%
0%
0.1%
April
0%
0%
0%
0.1%
May
0.1%
0.1%
0.1%
0.2%
June
0.5%
0.6%
0.4%
0.7%
July
0.6%
0.7%
0.5%
0.3%
August
0.3%
0.5%
0.5%
0.7%
September
1.4%
0.7%
1.1%
0.6%
October
0.1%
0.3%
0.2%
0.1%
November
0.2%
0%
0.1%
0%
December
0.2%
0.2%
0.2%
0.2%
Neighboring states
Colorado: arrives mid May, 2 weeks earlier than South Dakota
Wyoming: arrives the second week of July, 5 weeks later than South Dakota
Montana: arrives the second week of August, 9 weeks later than South Dakota
Utah: arrives the second week of May, 3 weeks earlier than South Dakota
Common questions
When do Clark's Nutcrackers arrive in South Dakota?
Clark's Nutcrackers arrive in South Dakota in early June, peak in the second week of September (1.1% of checklists), and most are gone by early October.
When do Clark's Nutcrackers leave South Dakota?
Most Clark's Nutcrackers have left South Dakota by early October, when reports fall below half their usual rate.
When is the best time to see a Clark's Nutcracker in South Dakota?
The Clark's Nutcracker is reported most often in the second week of September, on about 1.1% of South Dakota checklists.
Where in South Dakota are Clark's Nutcrackers seen most often?
By county, Custer County, Meade County, and Lawrence County have the highest peak reporting rates for the Clark's Nutcracker (counties with at least 200 checklists).