Bell's Vireos arrive in Indiana in early May, peak in early June (3.1% of checklists), and most are gone by early September.
When to look
First arrivalsMay 1-7early May
Common byMay 1-7early May
PeakJun 1-7early June
Most gone bySep 1-7early September
Best: early June. First arrivals early May; most are gone by early September. Peak: on about 3.1% of Indiana checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Apruncommon
Maypeak season
Junpeak season
Julpeak season
Augcommon
Sepcommon
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 Indiana 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.
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Indiana, the Bell's Vireo 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%
0.2%
May
1.3%
2.5%
2.5%
3.4%
June
3.0%
2.6%
2.5%
2.4%
July
2.4%
2.4%
1.9%
1.9%
August
1.7%
1.9%
2.0%
2.0%
September
1.2%
0.4%
0.1%
0.1%
October
0%
0%
0%
0%
November
0%
0%
0%
0%
December
0%
0%
0%
0%
Neighboring states
Illinois: arrives the second week of May, 1 week later than Indiana
Kentucky: arrives early May, in the same week than Indiana
Missouri: arrives early May, in the same week than Indiana
Iowa: arrives the second week of May, 1 week later than Indiana
Common questions
When do Bell's Vireos arrive in Indiana?
Bell's Vireos arrive in Indiana in early May, peak in early June (3.1% of checklists), and most are gone by early September.
When do Bell's Vireos leave Indiana?
Most Bell's Vireos have left Indiana by early September, when reports fall below half their usual rate.
When is the best time to see a Bell's Vireo in Indiana?
The Bell's Vireo is reported most often in early June, on about 3.1% of Indiana checklists.
Where in Indiana are Bell's Vireos seen most often?
By county, Warrick County, Greene County, and Gibson County have the highest peak reporting rates for the Bell's Vireo (counties with at least 200 checklists).