Gray-cheeked Thrushes mostly pass through North Dakota: they arrive in early May, peak in the second week of May (6.0% of checklists), and most are gone by late May.
When to look
First arrivalsMay 1-7early May
Common byMay 1-7early May
PeakMay 8-14the second week of May
Most gone byMay 22-31late May
Best: the second week of May. First arrivals early May; most are gone by late May. Peak: on about 6.0% of North Dakota checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Aprrare
Maypeak season
Jununcommon
Julnot usually seen
Augnot usually seen
Sepnot usually seen
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 North 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.
Foster CountyBest the second week of May · 17 checklists that week, 354 in all17%
Pierce CountyBest the second week of May · 25 checklists that week, 403 in all14%
Logan CountyBest late May · 26 checklists that week, 443 in all12%
Grant CountyBest late May · 22 checklists that week, 605 in all12%
Hettinger CountyBest the second week of May · 33 checklists that week, 400 in all12%
Cass CountyBest mid May · 950 checklists that week, 21,161 in all10%
Best spots
Share of checklists at the peak
Sertoma Park (southeast)Grand Forks County, best mid May · 31 checklists that week, 403 in all35%
Treefoil ParkCass County, best mid May · 168 checklists that week, 1,125 in all27%
Sertoma ParkGrand Forks County, best the second week of May · 65 checklists that week, 599 in all23%
Oak Grove ParkCass County, best mid May · 59 checklists that week, 387 in all20%
Oak ParkWard County, best mid May · 36 checklists that week, 777 in all19%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In North Dakota, the Gray-cheeked Thrush is most often listed on checklists started between 6 and 8 am (1.6% 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
1.2%
9.0%
7.4%
1.9%
June
0.1%
0%
0%
0%
July
0%
0%
0%
0%
August
0%
0%
0%
0.1%
September
0.1%
0.2%
0.1%
0.2%
October
0.1%
0.1%
0%
0%
November
0%
0%
0%
0%
December
0%
0%
0%
0%
Neighboring states
South Dakota: arrives early May, in the same week than North Dakota
Minnesota: arrives late April, 1 week earlier than North Dakota
Nebraska: arrives early May, in the same week than North Dakota
Iowa: arrives early May, in the same week than North Dakota
Common questions
When do Gray-cheeked Thrushes arrive in North Dakota?
Gray-cheeked Thrushes mostly pass through North Dakota: they arrive in early May, peak in the second week of May (6.0% of checklists), and most are gone by late May.
When do Gray-cheeked Thrushes leave North Dakota?
Most Gray-cheeked Thrushes have left North Dakota by late May, when reports fall below half their usual rate.
When is the best time to see a Gray-cheeked Thrush in North Dakota?
The Gray-cheeked Thrush is reported most often in the second week of May, on about 6.0% of North Dakota checklists.
Where in North Dakota are Gray-cheeked Thrushes seen most often?
By county, Foster County, Pierce County, and Logan County have the highest peak reporting rates for the Gray-cheeked Thrush (counties with at least 200 checklists).