When do bluebirds leave New Hampshire?

The Eastern Bluebird does not leave New Hampshire: it is reported all year, from 9.1% of checklists in the second week of August to 21% in the second week of March.

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

The Eastern Bluebird is reported most often in the second week of March, on about 21% of New Hampshire checklists.

Eastern Bluebird · Sialia sialis

When Do Bluebirds Arrive in New Hampshire?

Photo: Dan Vickers, CC BY 4.0 via iNaturalist

The Eastern Bluebird is in New Hampshire all year. It turns up on about 21% of checklists at its peak (the second week of March) and on 9.1% in its quietest week (the second week of August). They are the only regular bluebirds in New Hampshire.

When to look

PresentAll year

Peak weekMar 8-14the second week of March

Quietest weekAug 8-14the second week of August

Best: the second week of March. Here all year. Peak: on about 21% of New Hampshire checklists.

Janpeak season
Febpeak season
Marpeak season
Aprpeak season
Maypeak season
Juncommon
Julcommon
Augcommon
Sepcommon
Octpeak season
Novpeak season
Decpeak season

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

Bluebirds in New Hampshire, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Eastern Bluebird	all year	–	Mar 8-14	–	21%

Eastern Bluebird

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 Eastern Bluebird

Share of checklists at the peak

Strafford CountyBest late February · 746 checklists that week, 41,888 in all39%
Rockingham CountyBest mid February · 2210 checklists that week, 84,864 in all29%
Hillsborough CountyBest mid March · 1199 checklists that week, 50,125 in all27%
Merrimack CountyBest late October · 793 checklists that week, 36,980 in all24%
Cheshire CountyBest mid March · 898 checklists that week, 39,834 in all19%
Sullivan CountyBest late November · 233 checklists that week, 13,105 in all18%

Common questions

When do bluebirds arrive in New Hampshire?: The Eastern Bluebird is in New Hampshire all year. It turns up on about 21% of checklists at its peak (the second week of March) and on 9.1% in its quietest week (the second week of August). They are the only regular bluebirds in New Hampshire.
When do bluebirds leave New Hampshire?: The Eastern Bluebird does not leave New Hampshire: it is reported all year, from 9.1% of checklists in the second week of August to 21% in the second week of March.
When is the best time to see bluebirds in New Hampshire?: The Eastern Bluebird is reported most often in the second week of March, on about 21% of New Hampshire checklists.