Greater Yellowlegses arrive in Michigan in early April, peak in late April (5.6% of checklists), and most are gone by mid May.
When to look
First arrivalsApr 1-7early April
Common byApr 1-7early April
PeakApr 22-30late April
Most gone byMay 15-21mid May
Best: late April. First arrivals early April; most are gone by mid May. Peak: on about 5.6% of Michigan checklists.
Jannot usually seen
Febnot usually seen
Marrare
Aprpeak season
Maypeak season
Junrare
Juluncommon
Augcommon
Sepcommon
Octuncommon
Novuncommon
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 Michigan 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.
Gratiot CountyBest late April · 300 checklists that week, 5,892 in all37%
Branch CountyBest the second week of September · 72 checklists that week, 2,279 in all35%
Monroe CountyBest mid August · 609 checklists that week, 22,078 in all32%
Roscommon CountyBest the second week of September · 127 checklists that week, 7,054 in all24%
Arenac CountyBest late August · 171 checklists that week, 4,464 in all22%
Bay CountyBest late April · 743 checklists that week, 16,522 in all21%
Best spots
Share of checklists at the peak
School LakeCalhoun County, best late April · 32 checklists that week, 392 in all81%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Michigan, the Greater Yellowlegs is most often listed on checklists started between 6 and 8 pm (2.2% 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%
0.1%
0%
March
0.1%
0.1%
0.2%
0.5%
April
0.9%
2.1%
4.9%
6.9%
May
4.6%
2.6%
1.4%
0.4%
June
0.1%
0.1%
0.1%
0.1%
July
0.6%
1.1%
1.4%
2.1%
August
2.8%
4.2%
4.1%
4.1%
September
2.7%
2.4%
2.2%
2.0%
October
2.2%
1.9%
2.1%
1.8%
November
2.8%
0.6%
0.2%
0.1%
December
0%
0%
0%
0%
Neighboring states
Ohio: arrives the second week of July, 13 weeks later than Michigan
Indiana: arrives mid March, 2 weeks earlier than Michigan
Illinois: arrives late March, 1 week earlier than Michigan
Wisconsin: arrives early April, in the same week than Michigan
Common questions
When do Greater Yellowlegses arrive in Michigan?
Greater Yellowlegses arrive in Michigan in early April, peak in late April (5.6% of checklists), and most are gone by mid May.
When do Greater Yellowlegses leave Michigan?
Most Greater Yellowlegses have left Michigan by mid May, when reports fall below half their usual rate.
When is the best time to see a Greater Yellowlegs in Michigan?
The Greater Yellowlegs is reported most often in late April, on about 5.6% of Michigan checklists.
Where in Michigan are Greater Yellowlegses seen most often?
By county, Gratiot County, Branch County, and Monroe County have the highest peak reporting rates for the Greater Yellowlegs (counties with at least 200 checklists).