When do palm warblers arrive in New Brunswick?
The Palm Warbler is a summer breeder in New Brunswick — here is when to expect it, when it leaves, and how to be ready.
Palm Warbler timing in New Brunswick
- Arrives
- Around May
- Leaves
- By August
- Status here
- Summer breeder
- Nesting season
- June–July
- Present roughly
- May–August
In New Brunswick, palm warblers are present through the warm months, arriving around May and heading south again by August.
These windows are set by latitude: New Brunswick sits in the middle part of this species' range, so timing here runs later than the continental average — the season starts later this far north and the birds wait for it. In any given year, weather can move the first arrivals by a week or two either way.
Month by month in this state
Highlighted months are when palm warblers are expected in New Brunswick. The edges of the window are the interesting weeks — first arrivals and last departures vary most from year to year.
Getting ready before they arrive
The week before May is the time to act. Have feeders cleaned, filled and out by early May — the first palm warblers into New Brunswick are scouting for reliable food, and a station that's ready early gets added to their route.
Once nesting begins around June, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.
What palm warblers eat while they're here
- Flies, beetles and caterpillars
Winters on southern lawns and roadsides, tail-wagging as it walks; occasionally takes suet crumbs.
Full Palm Warbler diet guide → · Best feeder for palm warblers →
Native plants that hold palm warblers in New Brunswick
Food keeps a migrant for a day; habitat keeps it for the season. These New Brunswick-native plants are known to attract palm warblers:
Early-summer berries arrive exactly when nestlings are being fed.
Deciduous holly holding red fruit into mid-winter.
Fruit clusters persist all winter as emergency food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Blue-black fall fruit and dense nesting cover.
Blue fruit on red stems in early fall.
Keep exploring
Frequently asked
When do palm warblers arrive in New Brunswick?
palm warblers typically arrive in New Brunswick around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.
When do palm warblers leave New Brunswick?
Most palm warblers have left New Brunswick by August. They spend the winter farther south and return the following spring.
Do palm warblers stay in New Brunswick all year?
No — in New Brunswick the Palm Warbler is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.
What should I put out before palm warblers arrive in New Brunswick?
Have feeders up and clean by early May — first arrivals scout reliable food sources. Good offerings for this species: flies, beetles and caterpillars.
Sources
- Palm Warbler — All About Birds, Cornell Lab of Ornithology
- Palm Warbler life history — Cornell Lab of Ornithology
- Palm Warbler — Audubon Guide to North American Birds
- eBird region overview and bar charts — New Brunswick
- Plant Hardiness Zones of Canada — Natural Resources Canada
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.