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White-tailed Deer
Odocoileus virginianus
17,030 observations
Eastern Gray Squirrel
Sciurus carolinensis
12,513 observations
Eastern Cottontail
Sylvilagus floridanus
6,698 observations
Red Fox
Vulpes vulpes
6,319 observations
Common Raccoon
Procyon lotor
3,934 observations
Groundhog
Marmota monax
2,920 observations
American Beaver
Castor canadensis
2,481 observations
Eastern Chipmunk
Tamias striatus
1,744 observations
Virginia Opossum
Didelphis virginiana
1,342 observations
Domestic Horse
Equus caballus
1,335 observations
Domestic Cat
Felis catus
1,235 observations
Northern Short-tailed Shrew
Blarina brevicauda
1,014 observations
Muskrat
Ondatra zibethicus
982 observations
North American River Otter
Lontra canadensis
621 observations
Coyote
Canis latrans
513 observations
Sika Deer
Cervus nippon
505 observations
Eastern Fox Squirrel
Sciurus niger
364 observations
White-footed Mouse
Peromyscus leucopus
330 observations
American Black Bear
Ursus americanus
315 observations
Eastern Red Bat
Lasiurus borealis
268 observations
Striped Skunk
Mephitis mephitis
231 observations
Brown Rat
Rattus norvegicus
205 observations
Eastern Mole
Scalopus aquaticus
199 observations
American Mink
Neogale vison
193 observations
American Red Squirrel
Tamiasciurus hudsonicus
175 observations
House Mouse
Mus musculus
174 observations
Southern Flying Squirrel
Glaucomys volans
170 observations
Big Brown Bat
Eptesicus fuscus
164 observations
Tamanend's Bottlenose Dolphin
Tursiops erebennus
149 observations
North American Porcupine
Erethizon dorsatum
125 observations
Eastern Meadow Vole
Microtus pennsylvanicus
86 observations
Gray Fox
Urocyon cinereoargenteus
54 observations
Silver-haired Bat
Lasionycteris noctivagans
53 observations
Harbor Seal
Phoca vitulina
36 observations
Bobcat
Lynx rufus
35 observations
North American Least Shrew
Cryptotis parvus
35 observations
Domestic Dog
Canis familiaris
30 observations
Masked Shrew
Sorex cinereus
30 observations
Woodland Vole
Microtus pinetorum
26 observations
Eastern Deermouse
Peromyscus maniculatus
25 observations
Fisher
Pekania pennanti
24 observations
Hairy-tailed Mole
Parascalops breweri
22 observations
Tri-coloured Bat
Perimyotis subflavus
18 observations
European Rabbit
Oryctolagus cuniculus
17 observations
Star-nosed Mole
Condylura cristata
17 observations
Northern Hoary Bat
Lasiurus cinereus
16 observations
Grey Seal
Halichoerus grypus
15 observations
Northern Meadow Jumping Mouse
Zapus hudsonius
15 observations
Northeastern Marsh Rice Rat
Oryzomys palustris
11 observations
Humpback Whale
Megaptera novaeangliae
9 observations
Frequently Asked Questions
- The 10 most common mammals in Maryland are:
- White-tailed Deer (Odocoileus virginianus)
- Eastern Gray Squirrel (Sciurus carolinensis)
- Eastern Cottontail (Sylvilagus floridanus)
- Red Fox (Vulpes vulpes)
- Common Raccoon (Procyon lotor)
- Groundhog (Marmota monax)
- American Beaver (Castor canadensis)
- Eastern Chipmunk (Tamias striatus)
- Virginia Opossum (Didelphis virginiana)
- Domestic Horse (Equus caballus)
- The most observed mammal in Maryland is White-tailed Deer (Odocoileus virginianus), with 17,030 recorded observations.
- Some of the most commonly observed native mammals in Maryland include:
- Northeastern Marsh Rice Rat (Oryzomys palustris)