When do pine warblers arrive in Maine?
The Pine Warbler is a summer breeder in Maine — here is when to expect it, when it leaves, and how to be ready.
Pine Warbler timing in Maine
- Arrives
- Around April
- Leaves
- By July
- Status here
- Summer breeder
- Nesting season
- May–June
- Present roughly
- April–July
In Maine, pine warblers are present through the warm months, arriving around April and heading south again by July.
These windows are set by latitude: Maine sits in the northern 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 pine warblers 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 April is the time to act. Have feeders cleaned, filled and out by early April — the first pine warblers into Maine are scouting for reliable food, and a station that's ready early gets added to their route.
Once nesting begins around May, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.
What pine warblers eat while they're here
- Caterpillars and beetles in pines
Pine Warblers regularly visit suet and sunflower feeders in the Southeast in winter.
Full Pine Warbler diet guide → · Best feeder for pine warblers →
Native plants that hold pine warblers in Maine
Food keeps a migrant for a day; habitat keeps it for the season. These Maine-native plants are known to attract pine warblers:
Dense evergreen roost cover and bluish 'berries' eaten through winter.
Early-summer berries arrive exactly when nestlings are being fed.
Acorns plus hundreds of caterpillar species for nestling 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.
Lipid-rich red fruit fuels fall migrants.
Keep exploring
Frequently asked
When do pine warblers arrive in Maine?
pine warblers typically arrive in Maine around April, with nesting underway by May. Timing can shift a week or two with the weather in any given year.
When do pine warblers leave Maine?
Most pine warblers have left Maine by July. They spend the winter farther south and return the following spring.
Do pine warblers stay in Maine all year?
No — in Maine the Pine Warbler is a summer breeder, present roughly April–July. Outside that window it is rarely seen in the state.
What should I put out before pine warblers arrive in Maine?
Have feeders up and clean by early April — first arrivals scout reliable food sources. Good offerings for this species: caterpillars and beetles in pines.
Sources
- Pine Warbler — All About Birds, Cornell Lab of Ornithology
- Pine Warbler life history — Cornell Lab of Ornithology
- Pine Warbler — Audubon Guide to North American Birds
- eBird region overview and bar charts — Maine
- USDA Plant Hardiness Zone Map (2023)
- 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.