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Mammals of Cape Henlopen State Park

The mammals most often spotted in Cape Henlopen, ranked by recent research-grade observations.

531
recent observations
21
species listed
21
mammals

Naturalists have logged 531 research-grade observations across the 21 most-recorded species in Cape Henlopen. The most frequently seen is the White-tailed Deer, with 217 recorded sightings.

Most-observed mammals in Cape Henlopen

White-tailed Deer
Odocoileus virginianus
217 observations
Tamanend's Bottlenose Dolphin
Tursiops erebennus
133 observations
Harbor Seal
Phoca vitulina
63 observations
Grey Seal
Halichoerus grypus
30 observations
Eastern Gray Squirrel
Sciurus carolinensis
26 observations
Red Fox
Vulpes vulpes
19 observations
Eastern Cottontail
Sylvilagus floridanus
18 observations
Humpback Whale
Megaptera novaeangliae
3 observations
Striped Skunk
Mephitis mephitis
3 observations
House Mouse
Mus musculus
3 observations
Muskrat
Ondatra zibethicus
3 observations
Northern Short-tailed Shrew
Blarina brevicauda
3 observations
Common Raccoon
Procyon lotor
2 observations
Common Dolphin
Delphinus delphis
1 observation
North American River Otter
Lontra canadensis
1 observation
Gray Fox
Urocyon cinereoargenteus
1 observation
Virginia Opossum
Didelphis virginiana
1 observation
American Beaver
Castor canadensis
1 observation
White-footed Mouse
Peromyscus leucopus
1 observation
Groundhog
Marmota monax
1 observation
North American Least Shrew
Cryptotis parvus
1 observation · iNaturalist

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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