Mammals of Sligo Creek Park

LIKELIHOOD: C = Confirmed direct sighting of one or more individuals, or evidence of that species’ presence through prints, burrows, tunnels, scat, gnawed vegetation, etc.)
E = Expected
P = Possible
U = Unlikely but not impossible
RECORDED SIGHTING: All indicate sighting of one or more live animals, except when followed by:
S (sign or track) or
X (carcass)Note that sightings were only tabulated from 1990 to 2007.

Click on  common name  (green) for photo and additional information.

Name Likelihood in Sligo Recorded Sightings in Sligo Watershed
Sligo Section
Map of Sections
Years
(1990-2007)
MARSUPIALS
Opossum
Didelphis virginianus
C 6
10
9
multiple
2006
2004
INSECTIVORES
Masked Shrew
Sorex cinerus
E
Northern Short-tailed Shrew
Blarina bervicauda
C 8 1992
Least Shrew
Cryptotis parva
E
Eastern Mole
Scalopus aquaticus
C 6
8
multiple
2006 (S), 1992 (S)
Star-nosed Mole
Condylura cristata
P
BATS
Unspecified bats 6
1
10
multiple
2005
2005
Little Brown Bat
Myotis lucifugus
E
Northern Long-eared Bat
Myotis septentrionalis
P
Silver-haired Bat
Lasionycteris noctivagans
P
Tricolored Bat
Perimyotis subflavus
aka Eastern Pipistrelle
(Pipistrellus subflavus)
E
Big Brown Bat
Eptesicus fuscus
E
Eastern Red Bat
Lasiurus borealis
C 4 2007
Hoary Bat
Lasiurus cinerusi>
E
Evening Bat
Nyctecius humeralis
P
RABBITS

Sylvilagus floridanus
C 6
7
5
8
multiple
2007 (S)
2006
2006
RODENTS
Eastern chipmunk
Tamias striatus
C 6
7
8
multiple
2007 (S), 1992
2006
Groundhog (Woodchuck)
Marmota monax
C 2
9
2004
1990s
Gray Squirrel
Sciurus carolinensis
C probably all frequent
Southern flying squirrel
Glaucomys volans
E
Beaver
Castor canadensis
C 7
6
8
5
4
3
2007 (S)
2006
2005 (S), 2004 (S)
2004
2004
2003 (S)
White-footed Mouse
Peromyscus leucopus
C 8
6
2006, 1992
1992
Meadow Vole
Microtus pennsylvanicus
C 6
7
8
1992
1992 (S)
1992 (S)
Pine or Woodland Vole
Microtus pinetorum
E
Meadow Jumping Mouse
Zapus hudsonius
U
Black Rat
Rattus rattus
E
Norway Rat
Rattus norvegicus
C 8 2006
House Mouse
Mus musculus
E
Muskrat
Ondatra zibethica
C 9
3
2007
2007, 2006
CARNIVORES
Coyote
Canis latrans
C 7 2007
Red Fox
Vulpes vulpes
C 6
8
1
3
5
2006, 2005 (C), 2004, 2003
2006
2006, 2005
2004
2003
Gray Fox
Urocyon cinereoargenteus
C 9 2007, 2006 (C)
Raccoon
Procyon lotor
C 6
10
1
8
frequent, 2005 (C)
2007 (S)
2007 (S)
2006 (S
Long-tailed Weasel
Mustela frenata
P
Mink
Mustela vison
P
Striped Skunk
Mephitis mephitis
P
DEER
White-tailed Deer
Odocoileus virginianus
C probably all frequent

Initial inventory posted June 2007 and developed from Audubon Naturalist Society class projects by Michael Wilpers (“Mammals,” taught by Rob Gibbs, 2007) and Laura Mol (“Wildlife Ecology,” Rob Gibbs, 2006); augmented by Rob Gibbs, “Checklist of Land Mammals Occuring in the Middle Atlantic Region” (photocopy, 1996); Wm. Crum et al., Flora and Fauna of Sligo Creek Stream Valley Park, prepared for MNCPPC by U. of Md. students in natural resources management (1992); the Sightings page of the Friends of Sligo Creek web site for 2003-2007; and additional sightings solicited through the FOSC listserv in 2007.

Bat inventory revised October 2015 by Laura Mol to reflect findings in Rock Creek Park (2003-2004) and at Audubon Naturalist Society’s Woodend (Chevy Chase, 2014-2015).