Featured Species
The Pacific Islands Fish and Wildlife Office is responsible for 578 threatened and endangered species listed under the Endangered Species Act. Our office works with state, territorial, and commonwealth governments, federal agencies, non-profit organizations, private landowners, universities, local communities, and citizen scientist partners in an effort to recover these unique species to a point where they no longer need the protections of the ESA. Below you will find a list of threatened and endangered species unique to the Pacific Islands.
PAST SPECIES OF THE MONTH
- Pepeluali (February) 2024 - Hawaiʻi Mamo (Black Hawaiian Honeycreeper)
- Malaki (March) 2024 - Såli (Micronesian Starling)
- ʻApelila (April) 2024 - ʻIʻiwi (Scarlet Honeycreeper)
- Mei (May) 2024 - ʻIo (Hawaiian Hawk)
- Iune (June) 2024 - Poʻouli (Hawaiian black-faced honeycreeper)
- Iulai (July) 2024 - ʻApapane
ARTHROPODS
With more than 20 listed endangered and threatened arthropods in Hawaii and the Pacific Islands, we, along with its partners, work to conserve endangered and threatened arthropods and their habitats and ecosystems to help prevent further species extinction. Hawaii’s picture-wing flies are a great example of evolution.
Bees
- Anthricinan yellow-faced bee (Hylaeus anthracinus)
- Assimulans yellow-faced bee (Hylaeus assimulans)
- Easy yellow-faced bee (Hylaeus facilis)
- Hilaris yellow-faced bee (Hylaeus hilaris)
- Hawaiian yellow-faced bee (Hylaeus kuakea)
- Hawaiian yellow-faced bee (Hylaeus longiceps)
- Hawaiian yellow-faced bee (Hylaeus mana)
Butterflies
- Mariana eight-spot butterfly (Hypolimnas octocula marianensis)
- Mariana wandering butterfly (Vagrans egistina)
Damselflies
- Blackline Hawaiian Damselfly (Megalagrion nigrohamatum nigrolineatum)
- Crimson Hawaiian damselfly (Megalagrion leptodemas)
- Flying earwig Hawaiian damselfly (Megalagrion nesiotes)
- Oceanic Hawaiian damselfly (Megalagrion oceanicum)
- Orangeblack Hawaiian damselfly (Megalagrion xanthomelas)
- Pacific Hawaiian damselfly (Megalagrion pacificum)
- Rota blue damselfly (Ischnura)
Flies
- Hawaiian picture-wing fly (Drosophila aglaia)
- Hawaiian picture-wing fly (Drosophila differens)
- Hawaiian picture-wing fly (Drosophila digressa)
- Hawaiian picture-wing fly (Drosophila hemipeza)
- Hawaiian picture-wing fly (Drosophila heteroneura)
- Hawaiian picture-wing fly (Drosophila montgomeryi)
- Hawaiian picture-wing fly (Drosophila mulli)
- Hawaiian picture-wing fly (Drosophila musaphilia)
- Hawaiian picture-wing fly (Drosophila neoclavisetae)
- Hawaiian picture-wing fly (Drosophila obatai)
- Hawaiian picture-wing fly (Drosophila ochrobasis)
- Hawaiian picture-wing fly (Drosophila sharpi)
- Hawaiian picture-wing fly (Drosophila substenoptera)
- Hawaiian picture-wing fly (Drosophila tarphytrichia)
BIRDS
With more than 40 listed endangered and threatened bird species throughout the Pacific Islands, we, along with partners, work to conserve endangered and threatened birds and their habitats and ecosystems in order to prevent further species extinction. At least 32 birds species have gone extinct in Hawaii since 1778.
Ducks and Geese
Forest Birds
- Aga (Corvus kubaryi)
- Akekee (Loxops caeruleirostris)
- ʻAkiapolaʻau (Hemignathus munroi)
- ʻAkikiki (Oreomystis bairdi)
- Akohekohe (Palmeria dolei)
- ʻAlalā (Corvus hawaiiensis)
- Hawai‘i ‘ākepa (Loxops coccineus)
- Hawai‘i creeper (Loxops mana)
- ʻIo (Buteo solitarius)
- Kākāwahie (Paroreomyza flammea)
- Kāmaʻo (Myadestes myadestinus)
- Kauaʻi ʻakialoa (Akialoa stejnegeri)
- Kauaʻi nukupuʻu (Hemignathus lucidus)
- Kauai 'o'o (Moho braccatus)
- Kiwikiu (Pseudonestor xanthophrys)
- Laysan finch (Telespyza cantans)
- Maʻomaʻo (Gymnomyza samoensis)
- Maui ʻākepa (Loxops ochraceus)
- Maui nukupuʻu (Hemignathus affinis)
- Nihoa finch (Telespyza ultima)
- Nihoa millerbird (Acrocephalus familiaris kingi)
- Nightingale reed-warbler (Acrocephalus luscinia)
- Oʻahu ʻalauahio (Paroreomyza maculata)
- Oʻahu ʻelepaio (Chasiempis ibidis)
- Olomaʻo (Myadestes lanaiensis rutha)
- ʻŌʻū (Psittirostra psittacea)
- Palila (Loxioides bailleui)
- Poʻouli (Melamprosops phaeosoma)
- Puaiohi (Myadestes palmeri)
- Rota bridled white-eye (Zosterops rotensis)
Seabirds
- Band-Rumped Storm-Petrel (Oceanodroma castro)
- Hawaiian petrel (Pterodroma sandwichensis)
- Newell's townsend's shearwater (Puffinus auricularis newelli)
- Short-tailed albatross (Phoebastria albatrus)
Water Birds
- Ae'o (Himantopus mexicanus)
- ‘Alae ke‘oke‘o (Fulica alai)
- ‘Alae ‘ula (Gallinula chloropus sanvicensis)
- Ko'ko' (Rallus owstoni)
- Mariana common moorhen (Gallinula chloropus guami)
- Spotless crake (Porzana tabuensis)
Additional Birds
- Mariana gray swiftlet (Aerodramus vanikorensis bartschi)
- Sasangat (Megapodius laperouse)
- Sihek (Halcyon cinnamomina cinnamomina)
- Tuaimeo (Gallicolumba stairi)
MAMMALS
By working with partners we protect endangered and threatened mammals and their habitats to prevent further species extinction. Hawaii’s state mammal is the ʻōpeʻapeʻa, Hawaiian Hoary Bat. There are also bats native to American Samoa, Guam and CNMI and other islands in the Pacific.
Bats
- Fanihi (Pteropus mariannus mariannus)
- Little Mariana fruit Bat (Pteropus tokudae)
- ʻŌpeʻapeʻa (Lasiurus cinereus semotus)
- Pacific sheath-tailed Bat (Emballonura semicaudata semicaudata)
Seals
PLANTS
The Pacific Islands are home to 44% of the threatened and endangered plants listed under the Endangered Species Act. With nearly 400 listed endangered and threatened plant species throughout Hawaii and the Pacific Islands, we, with partners, work to conserve endangered and threatened plants and their habitats and ecosystems. In Hawaii, more than 90% of our flora is found nowhere else in the world.
Endangered Ferns and Fern Allies
- Adenophorus periens
- Asplenium dielfalcatum
- Asplenium diellaciniatum
- Asplenium dielmannii
- Asplenium dielpallidum
- Asplenium fragile var. insulare
- Asplenium unisorum
- Ctenitis squamigera
- Cyclosorus boydiae
- Deparia kaalaana
- Diellia erecta
- Diplazium molokaiense
- Doryopteris angelica
- Doryopteris takeuchii
- Dryopteris crinalis var. podosorus
- Dryopteris glabra var. pusilla
- Huperzia mannii
- Huperzia nutans
- Huperzia stemmermanniae
- Hypolepis hawaiiensis var. mauiensis
- Marsilea villosa
- Microlepia strigosa var. mauiensis
- Pteris lidgatei
Endangered Flowering Plants
- Abutilon eremitopetalum
- Abutilon menziesii
- Abutilon sandwicense
- Acaena exigua
- Achyranthes mutica
- Achyranthes splendens var. rotundata
- Alectryon macrococcus
- Amaranthus brownii
- Argyroxiphium kauense
- Argyroxiphium sandwicense ssp. sandwicense
- Astelia waialealae
- Bidens amplectens
- Bidens campylotheca ssp. pentamera
- Bidens campylotheca ssp. waihoiensis
- Bidens conjuncta
- Bidens hillebrandiana ssp. hillebrandiana
- Bidens micrantha ssp. ctenophylla
- Bidens micrantha ssp. kalealaha
- Bidens wiebkei
- Bonamia menziesii
- Brighamia insignis
- Brighamia rockii
- Calamagrostis expansa
- Calamagrostis hillebrandii
- Canavalia molokaiensis
- Canavalia napaliensis
- Canavalia pubescens
- Cenchrus agrimonioides
- Centaurium sebaeoides
- Charpentiera densiflora
- Clermontia drepanomorpha
- Clermontia lindseyana
- Clermontia oblongifolia ssp. brevipes
- Clermontia oblongifolia ssp. mauiensis
- Clermontia peleana
- Clermontia pyrularia
- Clermontia samuelii
- Colubrina oppositifolia
- Cyanea acuminata
- Cyanea asarifolia
- Cyanea asplenifolia
- Cyanea calycina
- Cyanea copelandii ssp. copelandii
- Cyanea copelandii ssp. haleakalaensis
- Cyanea crispa
- Cyanea dolichopoda
- Cyanea dunbarii
- Cyanea duvalliorum
- Cyanea eleeleensis
- Cyanea glabra
- Cyanea grimesiana ssp. grimesiana
- Cyanea grimesiana ssp. obatae
- Cyanea hamatiflora ssp. carlsonii
- Cyanea hamatiflora ssp. hamatiflora
- Cyanea horrida
- Cyanea humboldtiana
- Cyanea kauaulaensis
- Cyanea kolekoleensis
- Cyanea koolauensis
- Cyanea kuhihewa
- Cyanea kunthiana
- Cyanea lanceolata
- Cyanea lobata
- Cyanea longiflora
- Cyanea macrostegia ssp. gibsonii
- Cyanea magnicalyx
- Cyanea mannii
- Cyanea maritae
- Cyanea marksii
- Cyanea mauiensis
- Cyanea mceldowneyi
- Cyanea munroi
- Cyanea obtusa
- Cyanea pinnatifida
- Cyanea platyphylla
- Cyanea procera
- Cyanea profuga
- Cyanea purpurellifolia
- Cyanea remyi
- Cyanea rivularis
- Cyanea shipmanii
- Cyanea solanacea
- Cyanea st.-johnii
- Cyanea stictophylla
- Cyanea superba
- Cyanea tritomantha
- Cyanea truncata
- Cyanea undulata
- Cyperus fauriei
- Cyperus neokunthianus
- Cyperus pennatiformis
- Cyperus trachysanthos
- Cyrtandra crenata
- Cyrtandra cyaneoides
- Cyrtandra dentata
- Cyrtandra ferripilosa
- Cyrtandra filipes
- Cyrtandra giffardii
- Cyrtandra gracilis
- Cyrtandra hematos
- Cyrtandra kaulantha
- Cyrtandra munroi
- Cyrtandra nanawaleensis
- Cyrtandra oenobarba
- Cyrtandra oxybapha
- Cyrtandra paliku
- Cyrtandra polyantha
- Cyrtandra sessilis
- Cyrtandra subumbellata
- Cyrtandra tintinnabula
- Cyrtandra viridiflora
- Cyrtandra wagneri
- Cyrtandra waiolani
- Delissea rhytidosperma
- Delissea subcordata
- Delissea undulata
- Dubautia herbstobatae
- Dubautia imbricata ssp. imbricata
- Dubautia kalalauensis
- Dubautia kenwoodii
- Dubautia latifolia
- Dubautia pauciflorula
- Dubautia plantaginea ssp. humilis
- Dubautia plantaginea ssp. magnifolia
- Dubautia waialealae
- Eragrostis fosbergii
- Eugenia bryanii
- Eugenia koolauensis
- Euphorbia celastroides var. kaenana
- Euphorbia deppeana
- Euphorbia eleanoriae
- Euphorbia haeleeleana
- Euphorbia halemanui
- Euphorbia herbstii
- Euphorbia kuwaleana
- Euphorbia remyi var. kauaiensis
- Euphorbia remyi var. remyi
- Euphorbia rockii
- Euphorbia skottsbergii var. skottsbergii
- Exocarpos luteolus
- Exocarpos menziesii
- Festuca hawaiiensis
- Festuca molokaienesis
- Flueggea neowawraea
- Gardenia brighamii
- Gardenia mannii
- Gardenia remyi
- Geranium arboreum
- Geranium hanaense
- Geranium hillebrandii
- Geranium kauaiense
- Geranium multiflorum
- Gouania hillebrandii
- Gouania meyenii
- Gouania vitifolia
- Haplostachys haplostachya var. angustifolia
- Hedyotis mannii
- Hedyotis megalantha
- Hedyotis schlechtendahliana var. remyi
- Heritiera longipetiolata
- Hesperomannia arborescens
- Hesperomannia arbuscula
- Hesperomannia lydgatei
- Hibiscadelphus distans
- Hibiscadelphus giffardianus
- Hibiscadelphus hualalaiensis
- Hibiscadelphus woodii
- Hibiscus arnottianus ssp. immaculatus
- Hibiscus brackenridgei
- Hibiscus waimeae ssp. hannerae
- Ischaemum byrone
- Isodendrion hosakae
- Isodendrion laurifolium
- Isodendrion pyrifolium
- Joinvillea ascendens ssp. ascendens
- Kadua cookiana
- Kadua coriacea
- Kadua degeneri
- Kadua fluviatilis
- Kadua haupuensis
- Kadua parvula
- Kadua st.-johnii
- Kanaloa kahoolawensis
- Keysseria erici
- Keysseria helenae
- Kokia cookei
- Kokia drynarioides
- Kokia kauaiensis
- Korthalsella degeneri
- Labordia cyrtandrae
- Labordia helleri
- Labordia lorenceana
- Labordia lydgatei
- Labordia pumila
- Labordia tinifolia var. lanaiensis
- Labordia tinifolia var. wahiawaensis
- Labordia triflora
- Lepidium arbuscula
- Lepidium orbiculare
- Lipochaeta fauriei
- Lipochaeta kamolensis
- Lipochaeta lobata var. leptophylla
- Lipochaeta micrantha
- Lipochaeta venosa
- Lipochaeta waimeaensis
- Lobelia koolauensis
- Lobelia monostachya
- Lobelia niihauensis
- Lobelia oahuensis
- Lysimachia daphnoides
- Lysimachia filifolia
- Lysimachia iniki
- Lysimachia lydgatei
- Lysimachia maxima
- Lysimachia pendens
- Lysimachia scopulensis
- Lysimachia venosa
- Melanthera tenuifolia
- Melicope adscendens
- Melicope balloui
- Melicope christophersenii
- Melicope degeneri
- Melicope haupuensis
- Melicope hiiakae
- Melicope knudsenii
- Melicope lydgatei
- Melicope makahae
- Melicope mucronulata
- Melicope munroi
- Melicope ovalis
- Melicope pallida
- Melicope paniculata
- Melicope puberula
- Melicope quadrangularis
- Melicope reflexa
- Melicope saint-johnii
- Melicope zahlbruckneri
- Mezoneuron kavaiensis
- Mucuna sloanei var. persericea
- Myrsine fosbergii
- Myrsine juddii
- Myrsine knudsenii
- Myrsine mezii
- Myrsine vaccinioides
- Neraudia angulata
- Neraudia ovata
- Neraudia sericea
- Nesogenes rotensis
- Nothocestrum breviflorum
- Nothocestrum latifolium
- Nothocestrum peltatum
- Nototrichium humile
- Ochrosia haleakalae
- Ochrosia kilaueaensis
- Osmoxylon mariannense
- Panicum carteri
- Panicum niihauense
- Peperomia subpetiolata
- Phyllanthus saffordii
- Phyllostegia bracteata
- Phyllostegia brevidens
- Phyllostegia floribunda
- Phyllostegia glabra var. lanaiensis
- Phyllostegia helleri
- Phyllostegia hirsuta
- Phyllostegia hispida
- Phyllostegia kaalaensis
- Phyllostegia knudsenii
- Phyllostegia mannii
- Phyllostegia mollis
- Phyllostegia parviflora
- Phyllostegia racemosa
- Phyllostegia renovans
- Phyllostegia stachyoides
- Phyllostegia velutina
- Phyllostegia waimeae
- Phyllostegia warshaueri
- Phyllostegia wawrana
- Pittosporum halophilum
- Pittosporum hawaiiense
- Pittosporum napaliense
- Plantago hawaiensis
- Plantago princeps
- Plantago princeps var. longibracteata
- Plantago princeps var. princeps
- Platanthera holochila
- Platydesma cornuta var. cornuta
- Platydesma cornuta var. decurrens
- Platydesma remyi
- Platydesma rostrata
- Pleomele fernaldii
- Pleomele forbesii
- Pleomele hawaiiensis
- Poa mannii
- Poa sandvicensis
- Poa siphonoglossa
- Polyscias bissattenuata
- Polyscias flynnii
- Polyscias gymnocarpa
- Polyscias lydgatei
- Polyscias racemosa
- Portulaca sclerocarpa
- Portulaca villosa
- Pritchardia affinis
- Pritchardia bakeri
- Pritchardia hardyi
- Pritchardia kaalae
- Pritchardia lanigera
- Pritchardia munroi
- Pritchardia napaliensis
- Pritchardia remota
- Pritchardia schattaueri
- Pritchardia viscosa
- Pseudognaphalium sandwicensium ssp. Molokaiense
- Psychotria grandiflora
- Psychotria hexandra ssp. oahuensis
- Psychotria hobdyi
- Psychotria malaspinae
- Pteralyxia kauaiensis
- Pteralyxia macrocarpa
- Ranunculus hawaiensis
- Ranunculus mauiensis
- Remya kauaiensis
- Remya mauiensis
- Remya montgomeryi
- Sanicula mariversa
- Sanicula purpurea
- Sanicula sandwicensis
- Santalum haleakalae var. lanaiense
- Santalum involutum
- Scaevola coriacea
- Schiedea adamantis
- Schiedea apokremnos
- Schiedea attenuata
- Schiedea diffusa ssp. diffusa
- Schiedea diffusa ssp. macraei
- Schiedea haleakalensis
- Schiedea hawaiiensis
- Schiedea helleri
- Schiedea hookeri
- Schiedea jacobii
- Schiedea kaalae
- Schiedea kauaiensis
- Schiedea kealiae
- Schiedea laui
- Schiedea lydgatei
- Schiedea lynchnoides
- Schiedea membranacea
- Schiedea nuttallii
- Schiedea obovata
- Schiedea pubescens
- Schiedea salicaria
- Schiedea sarmentosa
- Schiedea spergulina var. spergulina
- Schiedea stellarioides
- Schiedea trinervis
- Schiedea verticillata
- Schiedea viscosa
- Serianthes nelsonii
- Sesbania tomentosa
- Sicyos albus
- Sicyos lanceoloideus
- Sicyos macrophyllus
- Silene alexandri
- Silene lanceolata
- Silene perlmanii
- Solanum guamense
- Solanum incompletum
- Solanum nelsonii
- Solanum sandwicense
- Spermolepis hawaiiensis
- Stenogyne angustifolia var. angustifolia
- Stenogyne bifida
- Stenogyne campanulata
- Stenogyne cranwelliae
- Stenogyne kaalae ssp. sherffii
- Stenogyne kanehoana
- Stenogyne kauaulaensis
- Stenogyne kealiae
- Tetramolopium arenarium
- Tetramolopium capillare
- Tetramolopium filiforme
- Tetramolopium lepidotum ssp. lepidotum
- Tetramolopium remyi
- Tinospora homosepala
- Trematolobelia singularis
- Urera kaalae
- Vicia menziesii
- Vigna o-wahuensis
- Viola chamissoniana ssp. chamissoniana
- Viola helenae
- Viola kauaensis var. wahiawaensis
- Viola lanaiensis
- Viola oahuensis
- Wikstroemia skottsbergiana
- Wikstroemia villosa
- Wilkesia hobdyi
- Xylosma crenatum
- Zanthoxylum dipetalum var. tomentosum
- Zanthoxylum hawaiiensis
- Zanthoxylum oahuense
Threatened Plants
- Argyroxiphium sandwicense ssp. macrocephalum
- Bulbophyllum guamense
- Cyanea recta
- Cycas micronesica
- Cyrtandra limahuliensis
- Dendrobium guamense
- Isodendrion longifolium
- Maesa walkeri
- Myrsine linearifolia
- Nervilia jacksoniae
- Peucedanum sandwicense
- Silene hawaiiensis
- Tabernaemontana rotensis
- Tetramolopium rockii
- Tuberolabium guamense
REPTILES
We work with partners to conserve endangered and threatened reptiles and their habitats to prevent further species extinction. Although Hawaii has no native land reptiles, other islands in the Pacific have native reptiles, including skinks and even a salt water crocodile.
Sea Turtles
- Honu (Chelonia mydas)
- Honu ʻea (Eretmochelys imbricata)
- Leatherback sea turtle (Dermochelys coriacea)
- Olive ridley sea turtle (Lepidochelys olivacea)
Skinks
SNAILS
With more than 40 listed endangered and threatened snail species in Hawaii and the Pacific Islands, we, with partners, work to conserve endangered and threatened snails and their habitats and ecosystems. Hawaiian tree snails don’t eat plants, they scrape algae off the surface of leaves keeping them clean.
American Samoa Snails
Hawaiʻi Snails
- Kāhuli or Pūpū kani oe (Achatinella spp.)
- Lanaʻi tree snail (Partulina semicarinata)
- Lanaʻi tree snail (Partulina variabilis)
- Newcomb's Tree snail (Newcombia cumingi)
- Newcomb's snail (Erinna newcombi)