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Mammals of Irvine, CA

The mammals most often spotted near Irvine, ranked by recent research-grade observations.

27,719
recent observations
50
species listed
50
mammals

Naturalists have logged 27,719 research-grade observations across the 50 most-recorded species near Irvine. The most frequently seen is the Eastern Fox Squirrel, with 6,802 recorded sightings.

Rarer finds confirmed near Irvine include Bobcat and Blue Whale - uncommon enough that a sighting is worth logging.

BobcatBlue Whale

Most-observed mammals near Irvine

Eastern Fox Squirrel
Sciurus niger
6,802 observations
California Ground Squirrel
Otospermophilus beecheyi
5,508 observations
Desert Cottontail
Sylvilagus audubonii
4,238 observations
Coyote
Canis latrans
2,125 observations
California Sea Lion
Zalophus californianus
1,235 observations
Virginia Opossum
Didelphis virginiana
1,150 observations
Mule Deer
Odocoileus hemionus
1,112 observations
Common Raccoon
Procyon lotor
794 observations
Common Dolphin
Delphinus delphis
783 observations
Striped Skunk
Mephitis mephitis
667 observations
Domestic Cat
Felis catus
570 observations
Common Bottlenose Dolphin
Tursiops truncatus
360 observations
Harbor Seal
Phoca vitulina
309 observations
Bobcat
Lynx rufus
232 observations
Black Rat
Rattus rattus
167 observations
Brush Rabbit
Sylvilagus bachmani
161 observations
Mountain Lion
Puma concolor
156 observations
Humpback Whale
Megaptera novaeangliae
151 observations
Botta's Pocket Gopher
Megascapheus bottae
145 observations · iNaturalist
Grey Whale
Eschrichtius robustus
132 observations
Fin Whale
Balaenoptera physalus
107 observations
Blue Whale
Balaenoptera musculus
91 observations
Gray Fox
Urocyon cinereoargenteus
82 observations
Western Gray Squirrel
Sciurus griseus
61 observations
European Rabbit
Oryctolagus cuniculus
57 observations
Long-tailed Weasel
Neogale frenata
54 observations · iNaturalist
House Mouse
Mus musculus
52 observations
Common Minke Whale
Balaenoptera acutorostrata
50 observations
Pacific White-sided Dolphin
Aethalodelphis obliquidens
42 observations · iNaturalist
California Vole
Microtus californicus
36 observations
Orca
Orcinus orca
28 observations
Risso's Dolphin
Grampus griseus
28 observations
Brown Rat
Rattus norvegicus
23 observations
Mexican Free-tailed Bat
Tadarida brasiliensis
21 observations
Southern Broad-footed Mole
Scapanus occultus
21 observations
Big-eared Woodrat
Neotoma macrotis
20 observations
Northern Elephant Seal
Mirounga angustirostris
19 observations
Wild Boar
Sus scrofa
18 observations · iNaturalist
Western Harvest Mouse
Reithrodontomys megalotis
17 observations
Gambel's Deer Mouse
Peromyscus gambelii
17 observations
Yuma Myotis
Myotis yumanensis
13 observations
Domestic Dog
Canis familiaris
12 observations
Western Spotted Skunk
Spilogale gracilis
9 observations
American Bison
Bos bison
8 observations · iNaturalist
Dusky-footed Woodrat
Neotoma fuscipes
7 observations
Sperm Whale
Physeter macrocephalus
7 observations
Merriam's Chipmunk
Neotamias merriami
7 observations
Big Brown Bat
Eptesicus fuscus
5 observations
Northern Hoary Bat
Lasiurus cinereus
5 observations
American Badger
Taxidea taxus
5 observations

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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