Migration timing

When do common nighthawks arrive in Northwest Territories?

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

Common Nighthawk, verified photograph
Photo: Wikimedia Commons

Common Nighthawk 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, common nighthawks 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 common nighthawks 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 common nighthawks 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 common nighthawks eat while they're here

  • Moths, beetles, flying ants and mosquitoes

Hunts around city lights at dusk; nests on flat gravel roofs and bare ground.

Full Common Nighthawk diet guide → · Best feeder for common nighthawks →

Native plants that hold common nighthawks 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 common nighthawks:

Paper birch
Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all winter.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

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.

Tamarack
Larix laricina · Tree

Deciduous conifer with small cones for siskins and redpolls.

Willow (Bebb)
Salix bebbiana · Shrub

Early catkins draw insects for arriving warblers and hummingbirds.

Dwarf birch
Betula glandulosa · Shrub

Catkin seed for redpolls on the tundra.

Keep exploring

Frequently asked

When do common nighthawks arrive in Northwest Territories?

common nighthawks 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 common nighthawks leave Northwest Territories?

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

Do common nighthawks stay in Northwest Territories all year?

No — in Northwest Territories the Common Nighthawk is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before common nighthawks arrive in Northwest Territories?

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

Sources

  1. Common Nighthawk — All About Birds, Cornell Lab of Ornithology
  2. Common Nighthawk life history — Cornell Lab of Ornithology
  3. Common Nighthawk — 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.