• Views from Penobscot Mountain summit.


    National Park Maine

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  • Trail Closure: Gorge Path weekdays, 7 am - 4 pm

    The section of the Gorge Path between the Hemlock Path intersection and the A. Murray Young Trail intersection is closed until rehabilitation work is completed. The closure will be in effect Mondays through Fridays only, from 7 am to 4 pm.

  • Construction updates

    Construction is continuing throughout the park. More information can be found on our Temporary Closures page. More »



Mammals, Amphibians, and Reptiles

Frog in a pond

Frog in a pond.


Furry and warm or slimey and scaley; for a checklist of the mammals, amphibians, and reptiles of the park click here.



Peregrine Falcon baby

Peregrine falcon chick.


Bird List

With a record of 338 bird species encountered, Acadia National Park is considered one of the premier bird-watching areas in the country. Twenty-three species of warblers alone have been recorded as breeding in the park! Click here for a checklist of the birds in the area.


Every year, strong northerly winds push thousands of raptors from Maine and Canada south along the eastern coastline as they migrate to warmer areas for the winter. With its wide-open views and tallest vantage point on the eastern coast, Acadia's HawkWatch location on Cadillac Mountain often provides visitors with a close look at the soaring raptors. Each year, program participants see large numbers of sharp-shinned hawks and American kestrels.

Discover what's happening this season at the HawkWatch in the weekly update, Riding the Winds, and view the recent daily counts for each species at Cadillac Mountain. To help you identify flying raptors, click here for a silhouette guide.

Peregrine Falcons
For information about peregrine falcons check out this blog. For information on their markings, and conservation efforts, click here.



Brook Trout

Brook trout.

NPS/Bill Gawley

Historic records indicate that 31 fish species have been encountered in the lakes, ponds, and brooks of Acadia National Park, although only 28 species can be found today. For more information on area fish, click here.


Marine Invertebrates

Sea Star thumbnail

Northern Seastar.

NPS/Sarah Hall

The intertidal zone of Acadia National Park contains numerous invertebrates (animals lacking a backbone). For a field guide to marine invertebrates in Acadia's waters, click here.


Insects, Spiders, Centipedes, and Millipedes

Luna moth thumbnail

Luna moth.

NPS/Todd Edgar

With diverse habitats from ocean shoreline to the granite tops of mountains, Acadia National Park contains many different types of insects. Just how many, we're not sure.

From 1928 to 1944, William H. Procter studied the invertebrates in the park. Today, park staff protect his collection as part of the curatorial program.

The park continues to learn about its insect species through the BioBlitz series, where biologists and naturalists conduct a rapid assessment of a specific group of invertebrates over a 24-hour period. These BioBlitzes document species occurrence, provide estimates of species richness, and identify rare and unique species.

Did You Know?

The wide carriage road is lined by the spring foliage of birch trees.

Acadia National Park's carriage road system, built by John D. Rockefeller Jr., has been called “the finest example of broken stone roads designed for horse-drawn vehicles still extant in America.” Today, you can hike or bike 45 miles of these scenic carriage roads in the park.