When do robins leave New Hampshire?

American Robins never fully leave New Hampshire: numbers fall back below half their usual rate by early August, but some are still reported in every week, about 11% of checklists at the low.

When is the best time to see robins in New Hampshire?

The American Robin is reported most often in the second week of May, on about 60% of New Hampshire checklists.

American Robin · Turdus migratorius

When Do Robins Arrive in New Hampshire?

Photo: northerly, CC BY 4.0 via iNaturalist

American Robins are in New Hampshire all year, but most are here in spring: numbers build from mid March, peak in the second week of May (60% of checklists), and fall back by early August. In the quietest week (the second week of December) they are still on about 11% of checklists.

When to look

Numbers buildMar 15-21mid March

PeakMay 8-14the second week of May

Fall back byAug 1-7early August

FewestDec 8-14the second week of December

Best: the second week of May. Here all year; numbers build from mid March and fall back by early August. Peak: on about 60% of New Hampshire checklists.

Januncommon
Febuncommon
Marcommon
Aprpeak season
Maypeak season
Junpeak season
Julpeak season
Augcommon
Sepcommon
Octcommon
Novcommon
Decuncommon

Darker months: more checklists report it. Outlined: peak month.

Robins in New Hampshire, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
American Robin	Mar 15-21	Mar 15-21	May 8-14	Aug 1-7	60%

American Robin

Share of complete checklists reporting each species, by week (4 per month). Gaps: fewer than 10 checklists that week.

Frequency is the share of complete checklists in New Hampshire 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.

Where in New Hampshire

Best counties for American Robin

Share of checklists at the peak

Merrimack CountyBest early May · 1495 checklists that week, 36,980 in all65%
Sullivan CountyBest the second week of July · 288 checklists that week, 13,105 in all65%
Hillsborough CountyBest late May · 1621 checklists that week, 50,125 in all65%
Cheshire CountyBest the second week of July · 527 checklists that week, 39,834 in all64%
Strafford CountyBest early May · 1458 checklists that week, 41,888 in all64%
Grafton CountyBest the second week of May · 1967 checklists that week, 45,699 in all60%

Common questions

When do robins arrive in New Hampshire?: American Robins are in New Hampshire all year, but most are here in spring: numbers build from mid March, peak in the second week of May (60% of checklists), and fall back by early August. In the quietest week (the second week of December) they are still on about 11% of checklists.
When do robins leave New Hampshire?: American Robins never fully leave New Hampshire: numbers fall back below half their usual rate by early August, but some are still reported in every week, about 11% of checklists at the low.
When is the best time to see robins in New Hampshire?: The American Robin is reported most often in the second week of May, on about 60% of New Hampshire checklists.