Migration timing

When do catbirds arrive in Alberta?

The Gray Catbird is a summer breeder in Alberta — here is when to expect it, when it leaves, and how to be ready.

Gray Catbird, verified photograph
Photo: Wikimedia Commons

Gray Catbird timing in Alberta

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

In Alberta, catbirds are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Alberta 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 catbirds are expected in Alberta. 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 catbirds into Alberta 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 catbirds eat while they're here

  • Ants, beetles and caterpillars

Catbirds rarely eat seed but visit oriole jelly feeders and fruiting shrubs; dense thickets bring them in.

Full Gray Catbird diet guide → · Best feeder for catbirds →

Native plants that hold catbirds in Alberta

Food keeps a migrant for a day; habitat keeps it for the season. These Alberta-native plants are known to attract catbirds:

Smooth sumac
Rhus glabra · Shrub

Red fruit heads hang on through winter.

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.

Rocky Mountain juniper
Juniperus scopulorum · Tree

Berry-like cones feed bluebirds, solitaires and waxwings in winter.

Golden currant
Ribes aureum · Shrub

Early yellow flowers for hummingbirds, then summer fruit.

Keep exploring

Frequently asked

When do catbirds arrive in Alberta?

catbirds typically arrive in Alberta around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.

When do catbirds leave Alberta?

Most catbirds have left Alberta by August. They spend the winter farther south and return the following spring.

Do catbirds stay in Alberta all year?

No — in Alberta the Gray Catbird is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before catbirds arrive in Alberta?

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

Sources

  1. Gray Catbird — All About Birds, Cornell Lab of Ornithology
  2. Gray Catbird life history — Cornell Lab of Ornithology
  3. Gray Catbird — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Alberta
  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.