Frogs in Maine: identification guide and best places to start

Frogs do show up in Maine, and the best first step is matching habitat, timing, and recent local conditions. Start with the state wildlife hub, compare likely cover and movement windows, use the animal facts page for field marks, and plan one realistic route before heading out.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Pacific chorus frog photographed in Maine

Pacific chorus frogPublic domain CC0

American Toad photographed in Maine

American ToadPublic domain CC0

Gray Treefrog photographed in Maine

Gray TreefrogFyn Kynd CC BY-SA

Photos by iNaturalist observers, reused under the licence each observer chose.
Peak season right now
8
species recorded
August, July, June
peak months

Verified species, source iNaturalist

9 types of frogs recorded in Maine

9 frog species have a verified observation record in Maine, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

  • Green Frog (Lithobates clamitans), a species recorded in Maine1

    Green Frog

    Lithobates clamitans

    3,530 records

    Alan Rockefeller CC BY

    Wikipedia
  • American Toad (Anaxyrus americanus), a species recorded in Maine2

    American Toad

    Anaxyrus americanus

    3,344 records

    Public domain CC0

    Wikipedia
  • American Bullfrog (Lithobates catesbeianus), a species recorded in Maine3

    American Bullfrog

    Lithobates catesbeianus

    2,885 records

    Nell Cant CC BY

    Wikipedia
  • Wood Frog (Lithobates sylvaticus), a species recorded in Maine4

    Wood Frog

    Lithobates sylvaticus

    2,784 records

    fletchermoore CC BY

    Wikipedia
  • Spring Peeper (Pseudacris crucifer), a species recorded in Maine5

    Spring Peeper

    Pseudacris crucifer

    2,677 records

    Laura J. Costello CC BY

    Wikipedia
  • Pickerel Frog (Lithobates palustris), a species recorded in Maine6

    Pickerel Frog

    Lithobates palustris

    1,888 records
  • Gray Treefrog (Dryophytes versicolor), a species recorded in Maine7

    Gray Treefrog

    Dryophytes versicolor

    1,574 records

    Blake Ross CC BY

    Wikipedia
  • Northern Leopard Frog (Lithobates pipiens), a species recorded in Maine8

    Northern Leopard Frog

    Lithobates pipiens

    553 records

    Liz Smith CC BY

    Wikipedia
  • Mink Frog (Lithobates septentrionalis), a species recorded in Maine9

    Mink Frog

    Lithobates septentrionalis

    198 records

    Bernadette Kavanaugh CC BY

    Wikipedia

Plus 3 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.

Real sighting data, source iNaturalist

19,776 verified observations on iNaturalist of frog have been recorded in Maine, most often in August, July, June.

When frog are recorded in Maine

Frogs do show up in Maine, and the best first step is matching habitat, timing, and recent local conditions. Start with the state wildlife hub, compare likely cover and movement windows, use the animal facts page for field marks, and plan one realistic route before heading out.

1. Where are people most likely to notice frogs in Maine?

Maine frogs stick close to water. Check slow streams, vernal pools, marshes, and lake edges. In spring, flooded meadows and roadside ditches draw breeding frogs. Backyard ponds and rain gardens also host them. For the best odds, visitwildlife in Maineduring the evening or just after a rain.

2. What season or weather patterns help with frog spotting?

April through June is prime frog season in Maine. Warm, damp evenings trigger the biggest choruses. A light rain or overcast day keeps frogs active longer. Early spring (40掳F+ nights) gets wood frogs and spring peepers going. Summer evenings bring green frogs and bullfrogs. Check thefrog animal hubfor more timing tips.

3. Simple ID cues that separate frogs from toads and lookalikes

Maine frogs have smooth, moist skin and long legs for jumping. Toads are warty and drier. Look for toe pads on tree frogs vs. no pads on bullfrogs. Color varies: wood frogs are brown with a dark mask, green frogs are greenish with a ridge down each side. Spring peepers are tiny (under 1.5 inches) with an X on the back. Use these cues in the field to identify species quickly.

See ourstate animal guidefor the next step.

4. What are the most common frog species in Maine?

You'll encounter wood frogs, spring peepers, green frogs, bullfrogs, pickerel frogs, mink frogs, and northern leopard frogs. Wood frogs are early spring breeders. Green frogs and bullfrogs stay near water all summer. Pickerel frogs have rectangular spots. Each has a distinct call. For a full species breakdown, visit thefrog animal hub.

5. How can frog calls help you spot them?

Learning calls makes frogs easier to find. Wood frogs make a duck-like quacking. Spring peepers give a high-pitched peep. Green frogs pluck a banjo string. Bullfrogs go deep and slow. Listen at dusk and follow the sound to the water. Once you pinpoint the chorus, move slowly and watch for movement at the surface.

6. What gear should you bring for a frog outing?

Wear rubber boots or waders. Bring a flashlight with a red filter to avoid startling frogs. A field guide or app helps with ID. A small net can catch frogs for a closer look (release gently). Pack a waterproof camera or phone case. For trailside tips, browse ourt-shirtsto spot a frog design while you walk.

7. Frog art and decor for your home

Once you've enjoyed frogs in the wild, bring them indoors with artwork that captures their charm. The Red Eyed Tree Frog Limited-Edition Print shows a classic rainforest species.

Red Eyed Tree Frog Limited-Edition Print

Bold colors and big eyes make this print a standout piece for a study or kids room.Check Price and Availability

Pine Barrens Tree Frog Limited-Edition Print

A rare East Coast frog with expert camouflage. This print brings a touch of the Pine Barrens to your wall.Check Price and Availability

iCanvas Frog Green Wall Art by Jo Lynch

A modern green frog illustration that works in any room. Ready to hang.Check Price and Availability

Browse morefrog art printsor comparewildlife shirtsfor a wearable frog tribute.

Wall art print: Frog by Eimear Maguire on Artfully Walls. Illustration, Animals, framed or unframed art printed on fine art paper

Product from otherCheck Price and Availability

8. Frequently asked questions about Maine frogs

**Are there poisonous frogs in Maine?** No native Maine frogs are dangerously poisonous. Some, like pickerel frogs, have skin irritants but won't harm humans.

**Do frogs hibernate in Maine?** Yes, wood frogs freeze solid and thaw in spring. Others burrow in mud.

**What is the best time of day to see frogs?** Dusk and dawn, especially after rain. Breeding choruses peak at night.

**Can I keep a frog as a pet?** Wild frogs are best left in the wild. Consider captive-bred species from a pet store.

**How do I tell a green frog from a bullfrog?** Green frogs have dorsolateral ridges; bullfrogs don't. Bullfrogs also get larger and have a deeper call.

For more answers, visit thefrog animal hub.

See ourtour planning ideasfor the next step.

Gear and field guides

Plan your trip

Best time to see frog in Maine: August, July, June

See the month-by-month sighting calendar.

When to go

Plan your frog sighting in Maine

Where to look in Maine

Planning a trip to see frog? Find places to stay near Acadia National Park on Booking.com.

Frequently asked questions

What frog species live in Maine?+

Maine frogs stick close to water. Check slow streams, vernal pools, marshes, and lake edges. In spring, flooded meadows and roadside ditches draw breeding frogs. Backyard ponds and rain gardens also host them. For the best odds, visitwildlife in Maineduring the evening or just after a rain.

Where can you see frogs in Maine?+

Maine frogs stick close to water. Check slow streams, vernal pools, marshes, and lake edges. In spring, flooded meadows and roadside ditches draw breeding frogs. Backyard ponds and rain gardens also host them. For the best odds, visitwildlife in Maineduring the evening or just after a rain.

When is the best time to see frogs in Maine?+

Maine frogs stick close to water. Check slow streams, vernal pools, marshes, and lake edges. In spring, flooded meadows and roadside ditches draw breeding frogs. Backyard ponds and rain gardens also host them. For the best odds, visitwildlife in Maineduring the evening or just after a rain.