
Based on 1,836 research-grade iNaturalist observations in New Jersey, Tree Swallow is most often recorded in May; in New Jersey it behaves like a seasonal. It ranks #44 among birds recorded in the state in our data.
Tachycineta bicolor
Tree Swallow in New Jersey by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in New Jersey in May

American Robin
Gray Catbird
Canada Goose
Red-winged Blackbird

Mallard

Mourning Dove
Common Yellowthroat

Laughing Gull
Places to look in New Jersey
Drew University
Liberty State Park
Willowwood Arboretum
Herrontown Woods Arboretum
Wawayanda State Park
Island Beach State Park
FAQ
When does Tree Swallow appear in New Jersey?
Mainly April–June, with the most records in May.
How common is Tree Swallow in New Jersey?
It ranks #44 by number of iNaturalist observations among birds in New Jersey (1,836 records in our sample).