When do robins leave New Jersey?

American Robins never fully leave New Jersey: numbers fall back below half their usual rate by early August, but some are still reported in every week, about 26% of checklists at the low.

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

The American Robin is reported most often in the second week of April, on about 68% of New Jersey checklists.

American Robin · Turdus migratorius

When Do Robins Arrive in New Jersey?

Photo: northerly, CC BY 4.0 via iNaturalist

American Robins are in New Jersey all year, but most are here in spring: numbers build from the second week of March, peak in the second week of April (68% of checklists), and fall back by early August. In the quietest week (the second week of January) they are still on about 26% of checklists.

When to look

Numbers buildMar 8-14the second week of March

PeakApr 8-14the second week of April

Fall back byAug 1-7early August

FewestJan 8-14the second week of January

Best: the second week of April. Here all year; numbers build from the second week of March and fall back by early August. Peak: on about 68% of New Jersey checklists.

Jancommon
Febcommon
Marpeak season
Aprpeak season
Maypeak season
Junpeak season
Julpeak season
Augcommon
Sepcommon
Octcommon
Novcommon
Deccommon

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

Robins in New Jersey, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
American Robin	Mar 8-14	Mar 8-14	Apr 8-14	Aug 1-7	68%

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 Jersey 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 Jersey

Best counties for American Robin

Share of checklists at the peak

Essex CountyBest mid April · 692 checklists that week, 28,396 in all88%
Bergen CountyBest late April · 2547 checklists that week, 73,457 in all84%
Mercer CountyBest the second week of May · 2095 checklists that week, 56,614 in all84%
Middlesex CountyBest late May · 1334 checklists that week, 46,761 in all83%
Camden CountyBest mid May · 678 checklists that week, 25,931 in all83%
Passaic CountyBest late April · 1220 checklists that week, 24,933 in all83%

Common questions

When do robins arrive in New Jersey?: American Robins are in New Jersey all year, but most are here in spring: numbers build from the second week of March, peak in the second week of April (68% of checklists), and fall back by early August. In the quietest week (the second week of January) they are still on about 26% of checklists.
When do robins leave New Jersey?: American Robins never fully leave New Jersey: numbers fall back below half their usual rate by early August, but some are still reported in every week, about 26% of checklists at the low.
When is the best time to see robins in New Jersey?: The American Robin is reported most often in the second week of April, on about 68% of New Jersey checklists.