American Black Ducks are winter birds in Indiana: the first arrive in mid October, they are common by late October, peak in the second week of December (3.9% of checklists), and most are gone by mid March.
When to look
First arrivalsOct 15-21mid October
Common byOct 22-31late October
PeakDec 8-14the second week of December
Most gone byMar 15-21mid March
Best: the second week of December. First arrivals mid October; most are gone by mid March. Peak: on about 3.9% of Indiana checklists.
Janpeak season
Febpeak season
Marcommon
Apruncommon
Maynot usually seen
Junnot usually seen
Julnot usually seen
Augnot usually seen
Seprare
Octcommon
Novpeak season
Decpeak season
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 American Black Duck is most often listed on checklists started between 2 and 4 pm (1.9% 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
3.6%
3.6%
3.1%
3.5%
February
3.5%
2.6%
2.0%
3.0%
March
2.6%
2.4%
1.5%
1.4%
April
0.7%
0.3%
0.1%
0.1%
May
0.1%
0.1%
0.1%
0.1%
June
0.1%
0.1%
0.1%
0.1%
July
0.1%
0.1%
0.1%
0.1%
August
0.1%
0.1%
0.1%
0.1%
September
0.1%
0.1%
0.1%
0.2%
October
0.3%
0.6%
1.5%
2.3%
November
2.9%
3.0%
3.0%
3.4%
December
3.8%
3.9%
3.9%
3.4%
Neighboring states
Illinois: arrives mid October, in the same week than Indiana
Kentucky: arrives mid November, 4 weeks later than Indiana
Ohio: arrives early October, 2 weeks earlier than Indiana
Michigan: arrives the second week of August, 9 weeks earlier than Indiana
Common questions
When do American Black Ducks arrive in Indiana?
American Black Ducks are winter birds in Indiana: the first arrive in mid October, they are common by late October, peak in the second week of December (3.9% of checklists), and most are gone by mid March.
When do American Black Ducks leave Indiana?
Most American Black Ducks have left Indiana by mid March, when reports fall below half their usual rate. Stragglers are still reported until late March.
When is the best time to see a American Black Duck in Indiana?
The American Black Duck is reported most often in the second week of December, on about 3.9% of Indiana checklists.
Where in Indiana are American Black Ducks seen most often?
By county, Dearborn County, Tippecanoe County, and Union County have the highest peak reporting rates for the American Black Duck (counties with at least 200 checklists).