Ruddy Ducks are winter birds in Rhode Island: the first arrive in late September, they are common by early October, peak in mid November (7.6% of checklists), and most are gone by the second week of April.
When to look
First arrivalsSep 22-30late September
Common byOct 1-7early October
PeakNov 15-21mid November
Most gone byApr 8-14the second week of April
Best: mid November. First arrivals late September; most are gone by the second week of April. Peak: on about 7.6% of Rhode Island checklists.
Jancommon
Febcommon
Marcommon
Apruncommon
Mayrare
Junnot usually seen
Julnot usually seen
Augnot usually seen
Sepuncommon
Octpeak season
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 Rhode Island 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.
Sachem PondWashington County, best early October · 28 checklists that week, 174 in all49%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Rhode Island, the Ruddy Duck is most often listed on checklists started between 1 and 3 pm (3.5% 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
5.8%
5.8%
4.8%
5.3%
February
3.6%
2.7%
3.1%
4.2%
March
5.8%
4.2%
3.0%
3.3%
April
1.7%
2.3%
2.9%
1.8%
May
0.8%
0.7%
0.7%
0.2%
June
0.1%
0.1%
0.1%
0.1%
July
0%
0%
0.1%
0.1%
August
0%
0%
0%
0.1%
September
0.1%
0.1%
0.2%
1.8%
October
3.7%
4.9%
5.1%
6.0%
November
6.3%
7.8%
7.6%
7.3%
December
7.0%
6.8%
4.9%
4.2%
Neighboring states
Massachusetts: arrives the second week of October, 2 weeks later than Rhode Island
Connecticut: arrives the second week of October, 2 weeks later than Rhode Island
New Hampshire: arrives the second week of October, 2 weeks later than Rhode Island
New Jersey: arrives early October, 1 week later than Rhode Island
Common questions
When do Ruddy Ducks arrive in Rhode Island?
Ruddy Ducks are winter birds in Rhode Island: the first arrive in late September, they are common by early October, peak in mid November (7.6% of checklists), and most are gone by the second week of April.
When do Ruddy Ducks leave Rhode Island?
Most Ruddy Ducks have left Rhode Island by the second week of April, when reports fall below half their usual rate. Stragglers are still reported until early May.
When is the best time to see a Ruddy Duck in Rhode Island?
The Ruddy Duck is reported most often in mid November, on about 7.6% of Rhode Island checklists.
Where in Rhode Island are Ruddy Ducks seen most often?
By county, Washington County, Newport County, and Providence County have the highest peak reporting rates for the Ruddy Duck (counties with at least 200 checklists).