Migration timing

When do palm warblers arrive in Northwest Territories?

The Palm Warbler is a summer breeder in Northwest Territories — here is when to expect it, when it leaves, and how to be ready.

Palm Warbler, verified photograph
Photo: Wikimedia Commons

Palm Warbler timing in Northwest Territories

Arrives
Around May
Leaves
By August
Status here
Summer breeder
Nesting season
June–July
Present roughly
May–August

In Northwest Territories, palm warblers are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Northwest Territories 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

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Highlighted months are when palm warblers are expected in Northwest Territories. 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 Northwest Territories 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 Northwest Territories

Food keeps a migrant for a day; habitat keeps it for the season. These Northwest Territories-native plants are known to attract palm warblers:

Paper birch
Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all winter.

Pin cherry
Prunus pensylvanica · Tree

Fast-growing northern cherry with midsummer fruit.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

Red-osier dogwood
Cornus sericea · Shrub

White fruit and red winter stems; good thicket cover.

Highbush cranberry
Viburnum trilobum · Shrub

Red fruit persists until late winter when other food is gone.

Western serviceberry
Amelanchier alnifolia · Shrub

Saskatoon berries ripen in early summer.

Balsam fir
Abies balsamea · Tree

Spruce-budworm habitat and dense winter roosting cover.

White spruce
Picea glauca · Tree

Cone crops drive winter irruptions of finches and crossbills.

Keep exploring

Frequently asked

When do palm warblers arrive in Northwest Territories?

palm warblers typically arrive in Northwest Territories 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 Northwest Territories?

Most palm warblers have left Northwest Territories by August. They spend the winter farther south and return the following spring.

Do palm warblers stay in Northwest Territories all year?

No — in Northwest Territories 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 Northwest Territories?

Have feeders up and clean by early May — first arrivals scout reliable food sources. Good offerings for this species: flies, beetles and caterpillars.

Sources

  1. Palm Warbler — All About Birds, Cornell Lab of Ornithology
  2. Palm Warbler life history — Cornell Lab of Ornithology
  3. Palm Warbler — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Northwest Territories
  5. Plant Hardiness Zones of Canada — Natural Resources Canada
  6. 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.