Migration timing

When do yellow warblers arrive in New Hampshire?

The Yellow Warbler is a summer breeder in New Hampshire — here is when to expect it, when it leaves, and how to be ready.

Yellow Warbler, verified photograph
Photo: Wikimedia Commons

Yellow Warbler timing in New Hampshire

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

In New Hampshire, yellow warblers are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: New Hampshire 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 yellow warblers are expected in New Hampshire. 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 yellow warblers into New Hampshire 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 yellow warblers eat while they're here

  • Caterpillars, midges, beetles and aphids

A wet-thicket warbler. It ignores feeders but uses birdbaths and drippers, especially on migration.

Full Yellow Warbler diet guide → · Best feeder for yellow warblers →

Native plants that hold yellow warblers in New Hampshire

Food keeps a migrant for a day; habitat keeps it for the season. These New Hampshire-native plants are known to attract yellow warblers:

Serviceberry
Amelanchier arborea · Tree

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

White oak
Quercus alba · Tree

Acorns plus hundreds of caterpillar species for nestling food.

Black cherry
Prunus serotina · Tree

Summer fruit and one of the top caterpillar host trees.

American elderberry
Sambucus canadensis · Shrub

Late-summer berry clusters taken by over 40 bird species.

Arrowwood viburnum
Viburnum dentatum · Shrub

Blue-black fall fruit and dense nesting cover.

Spicebush
Lindera benzoin · Shrub

Lipid-rich red fruit fuels fall migrants.

New England aster
Symphyotrichum novae-angliae · Perennial

Late nectar for insects and fall seed for sparrows.

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Keep exploring

Frequently asked

When do yellow warblers arrive in New Hampshire?

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

When do yellow warblers leave New Hampshire?

Most yellow warblers have left New Hampshire by August. They spend the winter farther south and return the following spring.

Do yellow warblers stay in New Hampshire all year?

No — in New Hampshire the Yellow 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 yellow warblers arrive in New Hampshire?

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

Sources

  1. Yellow Warbler — All About Birds, Cornell Lab of Ornithology
  2. Yellow Warbler life history — Cornell Lab of Ornithology
  3. Yellow Warbler — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — New Hampshire
  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.