Order Rodentia - rodents
Mount Desert Island is home to 15 species in 13 genera in 5 families. Click on a link below or scroll down for more information.
   Muridae (4 genera, 5 species)
      Clethrionomys gapperi - southern red-backed vole
      Peromyscus leucopus - white-footed mouse
      Peromyscus maniculatus - deer mouse
      Rattus norvegicus - Norway rat
      Synaptomys cooperi - southern bog lemming
   Dipodidae (2 genera, 2 species)
       Napaeozapus insignis - woodland jumping mouse
       Zapus hudsonius - meadow jumping mouse
   Castoridae (1 genus, 1 species)
       Castor canadensis - American beaver
   Sciuridae (5 genera, 6 species)
       Glaucomys sabrinus - northern flying squirrel
       Glaucomys volans - southern flying squirrel
       Marmota monax - woodchuck
       Sciurus carolinensis - eastern gray squirrel
       Tamias striatus - eastern chipmunk
      Tamiasciurus hudsonicus - red squirrel
   Erethizontidae (1 genus, 1 species)
      Erethizon dorsatum - common porcupine

Castoridae

Castor canadensis (American beaver) dam at outlet of Lower Breakneck Pond and lodge (behind).

Sciuridae

Tamiasciurus hudsonicus (red squirrel) is a common resident of the spruce forests on Mount Desert Island.

 

Erethizontidae

Erethizon dorsatum (common porcupine) at the edge of a carriage road (between intersection 12 and the bridge near Maple Spring trail) on the east side of the island.