Black-headed Grosbeaks reach Utah in late April, are common by early May, peak in late May (24% of checklists), and most are gone by early August.
When to look
First arrivalsApr 22-30late April
Common byMay 1-7early May
PeakMay 22-31late May
Most gone byAug 1-7early August
Best: late May. First arrivals late April; most are gone by early August. Peak: on about 24% of Utah checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Apruncommon
Maypeak season
Junpeak season
Julcommon
Auguncommon
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 Utah 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.
Salt Lake CountyBest late May · 3723 checklists that week, 104,432 in all35%
Weber CountyBest early June · 306 checklists that week, 13,172 in all35%
Cache CountyBest late May · 853 checklists that week, 21,769 in all34%
Morgan CountyBest the second week of June · 85 checklists that week, 3,178 in all31%
Wasatch CountyBest late May · 409 checklists that week, 7,780 in all26%
Wayne CountyBest mid May · 220 checklists that week, 4,300 in all26%
Best spots
Share of checklists at the peak
Olympus Hills ParkSalt Lake County, best mid May · 23 checklists that week, 367 in all98%
Parleys Historic ParkSalt Lake County, best early June · 29 checklists that week, 554 in all91%
Highland GlenUtah County, best late May · 34 checklists that week, 792 in all88%
Crestwood Outdoor PoolSalt Lake County, best mid May · 21 checklists that week, 546 in all88%
Willard Bay State ParkBox Elder County, best late May · 35 checklists that week, 800 in all87%
Yellow Fork CanyonSalt Lake County, best mid May · 51 checklists that week, 817 in all84%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Utah, the Black-headed Grosbeak 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%
0%
0%
0%
February
0%
0%
0%
0%
March
0%
0%
0%
0%
April
0.1%
0%
0.1%
2.8%
May
12%
22%
24%
24%
June
23%
20%
19%
18%
July
16%
13%
12%
10%
August
9.3%
7.8%
6.3%
5.3%
September
2.8%
1.5%
0.7%
0.2%
October
0.1%
0.1%
0%
0.1%
November
0%
0%
0%
0%
December
0.1%
0.1%
0%
0.1%
Neighboring states
Wyoming: arrives early May, 1 week later than Utah
Nevada: arrives mid April, 1 week earlier than Utah
Colorado: arrives late April, in the same week than Utah
Black-headed Grosbeaks reach Utah in late April, are common by early May, peak in late May (24% of checklists), and most are gone by early August.
When do Black-headed Grosbeaks leave Utah?
Most Black-headed Grosbeaks have left Utah by early August, when reports fall below half their usual rate. Stragglers are still reported until the second week of September.
When is the best time to see a Black-headed Grosbeak in Utah?
The Black-headed Grosbeak is reported most often in late May, on about 24% of Utah checklists.
Where in Utah are Black-headed Grosbeaks seen most often?
By county, Salt Lake County, Weber County, and Cache County have the highest peak reporting rates for the Black-headed Grosbeak (counties with at least 200 checklists).