WhenToBird

American Robin · Turdus migratorius

When Do Robins Arrive in Connecticut?

Adult male American Robin
Photo: northerly, CC BY 4.0 via iNaturalist

American Robins are in Connecticut all year, but most are here in spring: numbers build from mid March, peak in early May (72% of checklists), and fall back by early August. In the quietest week (the second week of January) they are still on about 16% of checklists.

When to look

Numbers buildMar 15-21mid March
PeakMay 1-7early May
Fall back byAug 1-7early August
FewestJan 8-14the second week of January

Best: early May. Here all year; numbers build from mid March and fall back by early August. Peak: on about 72% of Connecticut checklists.

  1. Januncommon
  2. Febuncommon
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Decuncommon

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

Robins in Connecticut, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
American RobinMar 15-21Mar 15-21May 1-7Aug 1-772%
0%20%40%60%80%American RobinJanFebMarAprMayJunJulAugSepOctNovDec
  • 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 Connecticut 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 Connecticut

Best counties for American Robin

Share of checklists at the peak
  1. New Haven CountyBest early May · 5748 checklists that week, 139,721 in all77%
  2. Hartford CountyBest early May · 3783 checklists that week, 105,735 in all76%
  3. Fairfield CountyBest early May · 4881 checklists that week, 139,848 in all73%
  4. Tolland CountyBest the second week of May · 1577 checklists that week, 39,004 in all72%
  5. Litchfield CountyBest mid May · 2417 checklists that week, 69,766 in all70%
  6. New London CountyBest the second week of May · 2092 checklists that week, 65,205 in all67%

Common questions

When do robins arrive in Connecticut?
American Robins are in Connecticut all year, but most are here in spring: numbers build from mid March, peak in early May (72% of checklists), and fall back by early August. In the quietest week (the second week of January) they are still on about 16% of checklists.
When do robins leave Connecticut?
American Robins never fully leave Connecticut: numbers fall back below half their usual rate by early August, but some are still reported in every week, about 16% of checklists at the low.
When is the best time to see robins in Connecticut?
The American Robin is reported most often in early May, on about 72% of Connecticut checklists.