Red-breasted Nuthatches are in Massachusetts all year, but most are here in fall: numbers build from mid August, peak in the second week of September (11% of checklists), and fall back by late December. In the quietest week (mid July) they are still on about 3.7% of checklists.
When to look
Numbers buildAug 15-21mid August
PeakSep 8-14the second week of September
Fall back byDec 22-31late December
FewestJul 15-21mid July
Best: the second week of September. Here all year; numbers build from mid August and fall back by late December. Peak: on about 11% of Massachusetts checklists.
Jancommon
Febcommon
Marcommon
Aprcommon
Maycommon
Jununcommon
Juluncommon
Augpeak season
Seppeak season
Octpeak season
Novpeak season
Deccommon
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 Massachusetts 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.
J. C. Phillips SanctuaryEssex County, best late August · 24 checklists that week, 1,160 in all75%
Thompson PondFranklin County, best late August · 25 checklists that week, 463 in all74%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Massachusetts, the Red-breasted Nuthatch is most often listed on checklists started between 6 and 8 am (9.5% 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
6.9%
6.7%
6.5%
6.6%
February
6.1%
7.2%
6.3%
5.6%
March
5.6%
5.3%
5.0%
5.4%
April
5.5%
6.2%
6.2%
6.5%
May
6.2%
5.6%
4.8%
3.8%
June
3.3%
3.9%
4.2%
4.1%
July
4.1%
3.3%
3.7%
3.9%
August
4.3%
5.3%
6.6%
8.8%
September
10%
11%
11%
10%
October
11%
10%
10%
8.9%
November
8.1%
7.8%
7.7%
7.8%
December
6.8%
7.5%
7.5%
7.8%
Neighboring states
Rhode Island: arrives the second week of August, 1 week earlier than Massachusetts
New Hampshire: year-round, peaks the second week of September
Connecticut: arrives mid June, 8 weeks earlier than Massachusetts
Vermont: year-round, peaks the second week of September
Common questions
When do Red-breasted Nuthatches arrive in Massachusetts?
Red-breasted Nuthatches are in Massachusetts all year, but most are here in fall: numbers build from mid August, peak in the second week of September (11% of checklists), and fall back by late December. In the quietest week (mid July) they are still on about 3.7% of checklists.
When do Red-breasted Nuthatches leave Massachusetts?
Red-breasted Nuthatches never fully leave Massachusetts: numbers fall back below half their usual rate by late December, but some are still reported in every week, about 3.7% of checklists at the low.
When is the best time to see a Red-breasted Nuthatch in Massachusetts?
The Red-breasted Nuthatch is reported most often in the second week of September, on about 11% of Massachusetts checklists.
Where in Massachusetts are Red-breasted Nuthatches seen most often?
By county, Barnstable County, Nantucket County, and Dukes County have the highest peak reporting rates for the Red-breasted Nuthatch (counties with at least 200 checklists).