United States Ramsar wetland
Kawai Nui Marsh
121 bird species recorded; the most from December to March.
Eric Tessmer · CC BY 3.0
This month here
85 species in January.86 species in February.81 species in March.68 species in April.65 species in May.66 species in June.71 species in July.70 species in August.65 species in September.78 species in October.81 species in November.88 species in December.
The birds you are most likely to see in the month you choose, those that come for the season first. It opens on today's month.











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- Resident all year
- Summer visitor comes to breed
- Winter visitor comes for the winter
- Passage migrant in spring and autumn
In numbers
121 species, counted.
Our own rating, from the records only: species (50 points), threatened species (20), migrants (20) and protected status — Ramsar, IBA, SPA, observatory (10).
- 121Speciesrecorded more than once
- 39Migrantssummer, winter or passage visitors
- 5ThreatenedVulnerable, Endangered or Critically Endangered (IUCN)
- 94,770Recordsopen records within 6 km
- 2Raptors
- 3Owls
- 18Waders
- 24Gulls & seabirds
- 22Ducks & geese
- 4Herons, ibises & grebes
- 28Songbirds
- 20Other birds
From open records (eBird and others, through GBIF, licensed for any use). More birdwatchers mean more records: a quiet place may have more birds than it shows.
The checklist
All 121 species.
By group, with the year in twelve cells: the darker the cell, the more often the bird is recorded that month.
Raptors2 species
- OspreyPandion haliaetus
- Peregrine FalconFalco peregrinus
Owls3 species
- Short-eared OwlAsio flammeus
- American Barn OwlTyto furcata
- Western Barn OwlTyto alba
Waders18 species
- Black-necked StiltHimantopus mexicanus
- Pacific Golden PloverPluvialis fulva
- Wandering (Alaskan) TattlerTringa incana
- Ruddy TurnstoneArenaria interpresNT
- SanderlingCalidris alba
- Bristle-thighed CurlewNumenius tahitiensisNT
- Grey PloverPluvialis squatarolaVU
- Gray-tailed TattlerTringa brevipes
- Bar-tailed godwitLimosa lapponicaNT
- Spotted SandpiperActitis macularius
- Semipalmated PloverCharadrius semipalmatus
- Long-billed dowitcherLimnodromus scolopaceusNT
- Greater YellowlegsTringa melanoleucaNT
- Lesser yellowlegsTringa flavipesVU
- Least SandpiperCalidris minutillaNT
- Sharp-tailed SandpiperCalidris acuminataVU
- Pectoral SandpiperCalidris melanotos
- Wilson's SnipeGallinago delicata
Gulls & seabirds24 species
- Great FrigatebirdFregata minor
- Anous minutusAnous minutus
- Caspian TernHydroprogne caspia
- Wedge-tailed ShearwaterPuffinus pacificus
- Red-footed BoobySula sula
- Laughing GullLeucophaeus atricilla
- Brown BoobySula leucogaster
- Anous stolidusAnous stolidus
- Sooty TernOnychoprion fuscatus
- Angel TernGygis alba
- Masked BoobySula dactylatra
- White-tailed TropicbirdPhaethon lepturus
- Glaucous-winged GullLarus glaucescens
- Laysan AlbatrossPhoebastria immutabilisNT
- Red-tailed TropicbirdPhaethon rubricauda
- Bulwer’s petrelBulweria bulwerii
- Bonaparte's GullChroicocephalus philadelphia
- Least TernSternula antillarum
- Ring-billed GullLarus delawarensis
- Great Crested-TernThalasseus bergii
- Black TernChlidonias niger
- Sooty shearwaterPuffinus griseus
- FulmarFulmarus glacialis
- Common TernSterna hirundo
Ducks & geese22 species
- MallardAnas platyrhynchos
- Cairina moschataCairina moschata
- Northern ShovelerSpatula clypeata
- Northern PintailAnas acuta
- Brent GooseBranta bernicla
- Lesser ScaupAythya affinis
- Eurasian WigeonMareca penelope
- American WigeonMareca americana
- CanvasbackAythya valisineria
- Hooded MerganserLophodytes cucullatus
- Ring-necked DuckAythya collaris
- Eurasian TealAnas crecca
- Greater ScaupAythya marila
- Blue-winged TealSpatula discors
- Hawaiian DuckAnas wyvillianaVU
- Snow gooseAnser caerulescens
- Tufted DuckAythya fuligula
- Cackling GooseBranta hutchinsii
- Greylag GooseAnser anser
- BuffleheadBucephala albeola
- Black swanCygnus atratus
- NeneBranta sandvicensisNT
Herons, ibises & grebes4 species
- Western Cattle EgretBubulcus ibis
- Black-crowned Night-HeronNycticorax nycticorax
- Great Blue HeronArdea herodias
- Plegadis chihiPlegadis chihi
Songbirds28 species
- Common MynaAcridotheres tristis
- Red-vented BulbulPycnonotus cafer
- Red-crested CardinalParoaria coronata
- Common WaxbillEstrilda astrild
- Zosterops japonicusZosterops japonicus
- Red-whiskered BulbulPycnonotus jocosus
- Northern CardinalCardinalis cardinalis
- House finchHaemorhous mexicanus
- Java SparrowLonchura oryzivora
- White-rumped ShamaCopsychus malabaricus
- House SparrowPasser domesticus
- Chestnut MuniaLonchura atricapilla
- Spice FinchLonchura punctulata
- Red-billed LeiothrixLeiothrix lutea
- Red AvadavatAmandava amandava
- Saffron FinchSicalis flaveola
- Yellow-fronted CanaryCrithagra mozambica
- Japanese Bush WarblerHorornis diphone
- Oahu AmakihiChlorodrepanis flavaNT
- African SilverbillEuodice cantans
- Northern MockingbirdMimus polyglottos
- Orange-cheeked WaxbillEstrilda melpoda
- ApapaneHimatione sanguinea
- HwameiGarrulax canorus
- Oahu ElepaioChasiempis ibidisVU
- SkylarkAlauda arvensis
- Yellow-faced GrassquitTiaris olivaceus
- Black-headed MuniaLonchura malacca
Other birds20 species
- Zebra DoveGeopelia striata
- Eastern Spotted DoveSpilopelia chinensis
- Common MoorhenGallinula chloropus
- Hawaiian CootFulica alaiNT
- Rock DoveColumba livia
- Red JunglefowlGallus gallus
- Ortygornis pondicerianusOrtygornis pondicerianus
- Rose-ringed ParakeetPsittacula krameri
- Indian PeafowlPavo cristatus
- Mourning DoveZenaida macroura
- Common PheasantPhasianus colchicus
- Helmeted GuineafowlNumida meleagris
- Red-crowned Parrot, Red-crowned AmazonAmazona viridigenalis
- Red-and-green MacawAra chloropterus
- White CockatooCacatua alba
- Belted KingfisherMegaceryle alcyon
- Red-masked ParakeetAratinga erythrogenys
- Salmon-crested CockatooCacatua moluccensis
- Blue-and-yellow MacawAra ararauna
- Rosy-faced LovebirdAgapornis roseicollis
Monthly presence relative to all bird records that month, so a busy month does not inflate every species.
When to go
The most species from December to March.
Species recorded in each month, with the usual temperature and rain.
- Jan24°/23°56 mm
- Feb24°/22°70 mm
- Mar24°/22°77 mm
- Apr24°/23°42 mm
- May25°/24°33 mm
- Jun26°/24°26 mm
- Jul26°/25°28 mm
- Aug27°/25°34 mm
- Sep27°/26°36 mm
- Oct27°/25°57 mm
- Nov26°/24°67 mm
- Dec25°/23°74 mm
- Bar: species recorded that month.
- Temperature: average maximum / minimum (NASA, 1991–2020).
- Rain: monthly total.
The place
Kawai Nui Marsh.
Park in Honolulu County, Hawaii, United States of America
Kawai Nui Marsh is a wetland of international importance (Ramsar) in United States.
121 bird species have been recorded here more than once, in 94,770 open records.
The most recorded are the Common Myna, the Zebra Dove and the Western Cattle Egret.
12 species come for the summer, 24 for the winter and 3 only pass through.
5 are threatened worldwide, including Grey Plover, Hawaiian Duck and Oahu Elepaio.
The most species are recorded from December to March.

Get there and watch
- Waimanalo beach parkcampsite · 9.4 km · 1 within 10 km
- Studio In Paradiseplace to stay · 8.7 km · 1 within 10 km
- Olomananearest town · 1.6 km in a straight line
- Daniel K. Inouye International Airport (HNL)nearest airport with scheduled flights · 19 km in a straight lineCar hire at HNL airport (Honolulu, Oahu)Discover Cars · sponsored link↗
Plan the visit
A guided walk, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
From above
The place and its surroundings.
The satellite image of the 6 × 6 km around the place, with the bird hides, towers and trails that OpenStreetMap shows.

Around, in OpenStreetMap
- 1visitor centres within 6 kmThe Paul R. Weissich Education Center
- 15viewpoints within 5 kmPali Lookout, Pillbox #1, Scenic Lookout and 12 more
- 61car parks within 3 km
- 31restaurants and cafés within 3 km
- 1campsites within 10 kmWaimanalo beach park
- 1places to stay within 10 kmStudio In Paradise
- bird hides within 6 km
- observation towers within 6 km
- marked trails within 4 km
Counted in OpenStreetMap, the map anyone can edit. A low number may just mean nobody has mapped it yet.
In our other atlases
Around Kawai Nui Marsh.
The lakes, beaches, islands, rivers and mountains around this place, and its night sky, in the family's atlases.
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap). Links open when each site is online.
Photographs
The place, as people saw it.



Where these figures come from
| Name and type | Wikidata (Q6379526) · CC0 |
|---|---|
| Birds | 94,770 open bird records within 6 km (GBIF, CC0 and CC BY 4.0 only; mostly eBird, Cornell Lab of Ornithology) |
| See these records | gbif.org |
| Species | GBIF Backbone Taxonomy · CC BY 4.0; Wikidata (CC0); Wikimedia Commons |
| Altitude | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Temperature and rain | NASA POWER (CERES SYN1deg, 2001–2020; MERRA-2) |
| What is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Sister atlases | Peakyas, Islandyas, Coastya, Cascadyas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?
Same idea, other landscapes: field atlases built on open data, in seven languages.