Migration timing

When do red-eyed vireos arrive in Maine?

The Red-eyed Vireo is a summer breeder in Maine — here is when to expect it, when it leaves, and how to be ready.

Red-eyed Vireo, verified photograph
Photo: Wikimedia Commons

Red-eyed Vireo timing in Maine

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

In Maine, red-eyed vireos are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Maine 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 red-eyed vireos are expected in Maine. 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 red-eyed vireos into Maine 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 red-eyed vireos eat while they're here

  • Caterpillars, especially tent and gypsy moth larvae

One of the most abundant birds in eastern woods — and one of the most persistent singers.

Full Red-eyed Vireo diet guide → · Best feeder for red-eyed vireos →

Native plants that hold red-eyed vireos in Maine

Food keeps a migrant for a day; habitat keeps it for the season. These Maine-native plants are known to attract red-eyed vireos:

Eastern red cedar
Juniperus virginiana · Tree

Dense evergreen roost cover and bluish 'berries' eaten through winter.

Serviceberry
Amelanchier arborea · Tree

Early-summer berries arrive exactly when nestlings are being fed.

Winterberry
Ilex verticillata · Shrub

Deciduous holly holding red fruit into mid-winter.

Staghorn sumac
Rhus typhina · Shrub

Fruit clusters persist all winter as emergency food.

Smooth sumac
Rhus glabra · Shrub

Red fruit heads hang on through winter.

White oak
Quercus alba · Tree

Acorns plus hundreds of caterpillar species for nestling food.

Bur oak
Quercus macrocarpa · Tree

Drought-hardy prairie oak with large acorns and a heavy insect load.

Black cherry
Prunus serotina · Tree

Summer fruit and one of the top caterpillar host trees.

Keep exploring

Frequently asked

When do red-eyed vireos arrive in Maine?

red-eyed vireos typically arrive in Maine around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.

When do red-eyed vireos leave Maine?

Most red-eyed vireos have left Maine by August. They spend the winter farther south and return the following spring.

Do red-eyed vireos stay in Maine all year?

No — in Maine the Red-eyed Vireo is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before red-eyed vireos arrive in Maine?

Have feeders up and clean by early May — first arrivals scout reliable food sources. Good offerings for this species: caterpillars, especially tent and gypsy moth larvae.

Sources

  1. Red-eyed Vireo — All About Birds, Cornell Lab of Ornithology
  2. Red-eyed Vireo life history — Cornell Lab of Ornithology
  3. Red-eyed Vireo — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Maine
  5. USDA Plant Hardiness Zone Map (2023)
  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.