Mammals of Hawaii
The mammals most often spotted in Hawaii, ranked by recent research-grade observations.
12,007
recent observations
34
species listed
34
mammals
Naturalists have logged 12,007 research-grade observations across the 34 most-recorded species in Hawaii. The most frequently seen is the Hawaiian Monk Seal, with 3,060 recorded sightings.
Rarer finds confirmed in Hawaii include Axis Deer, Blainville's Beaked Whale, False Killer Whale and Pygmy Killer Whale - uncommon enough that a sighting is worth logging.
Most-observed mammals in Hawaii
Hawaiian Monk Seal
Neomonachus schauinslandi
3,060 observations · iNaturalist
Small Indian Mongoose
Urva auropunctata
2,857 observations · iNaturalist
Humpback Whale
Megaptera novaeangliae
1,483 observations
Domestic Cat
Felis catus
1,058 observations
Spinner Dolphin
Stenella longirostris
997 observations
Domestic Goat
Capra hircus
797 observations · iNaturalist
Wild Boar
Sus scrofa
664 observations · iNaturalist
Domestic Sheep
Ovis aries
165 observations · iNaturalist
Short-finned Pilot Whale
Globicephala macrorhynchus
141 observations
Chital
Axis axis
106 observations
Common Bottlenose Dolphin
Tursiops truncatus
104 observations
House Mouse
Mus musculus
96 observations
Black Rat
Rattus rattus
89 observations
Pantropical Spotted Dolphin
Stenella attenuata
70 observations
Hawaiian Hoary Bat
Lasiurus semotus
59 observations · iNaturalist
Domestic Cattle
Bos taurus
44 observations · iNaturalist
Domestic Horse
Equus caballus
43 observations · iNaturalist
Rough-toothed Dolphin
Steno bredanensis
30 observations · iNaturalist
Dense-beaked Whale
Mesoplodon densirostris
21 observations
Mule Deer
Odocoileus hemionus
18 observations
European Rabbit
Oryctolagus cuniculus
16 observations · iNaturalist
False Killer Whale
Pseudorca crassidens
14 observations
Domestic Dog
Canis familiaris
13 observations · iNaturalist
Pygmy Killer Whale
Feresa attenuata
12 observations
Cuvier's Beaked Whale
Ziphius cavirostris
11 observations
Polynesian Rat
Rattus exulans
10 observations · iNaturalist
Brown Rat
Rattus norvegicus
8 observations
Sperm Whale
Physeter macrocephalus
6 observations
Melon-headed Whale
Peponocephala electra
5 observations
Donkey
Equus asinus
4 observations · iNaturalist
Fraser's Dolphin
Lagenodelphis hosei
3 observations
Dwarf Sperm Whale
Kogia sima
1 observation
Orca
Orcinus orca
1 observation
Mule
Equus asinus × caballus
1 observation · iNaturalist
Mammals in nearby places
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