Japan Ramsar wetland
Inner Lake
107 bird species recorded; the most in February.
Alpsdake · CC BY-SA 4.0
This month here
68 species in January.80 species in February.66 species in March.33 species in April.43 species in May.16 species in June.20 species in July.7 species in August.41 species in September.50 species in October.73 species in November.70 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
107 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).
- 107Speciesrecorded more than once
- 57Migrantssummer, winter or passage visitors
- 3ThreatenedVulnerable, Endangered or Critically Endangered (IUCN)
- 4,240Recordsopen records within 6 km
- 84 mAltitudeabove the sea
- 10Raptors
- 9Waders
- 2Gulls & seabirds
- 21Ducks & geese
- 11Herons, ibises & grebes
- 1Storks & cranes
- 42Songbirds
- 11Other 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 107 species.
By group, with the year in twelve cells: the darker the cell, the more often the bird is recorded that month.
Raptors10 species
- Black KiteMilvus migrans
- OspreyPandion haliaetus
- Eastern Marsh-harrierCircus spilonotus
- Japanese BuzzardButeo japonicus
- Common KestrelFalco tinnunculus
- Hen HarrierCircus cyaneus
- Grey-faced BuzzardButastur indicus
- Crested Honey BuzzardPernis ptilorhynchus
- Eurasian SparrowhawkAccipiter nisus
- MerlinFalco columbarius
Waders9 species
- Grey-headed LapwingVanellus cinereus
- Northern LapwingVanellus vanellusNT
- RedshankTringa totanus
- Common SandpiperActitis hypoleucos
- Common SnipeGallinago gallinago
- Eurasian WhimbrelNumenius phaeopus
- Pacific Golden PloverPluvialis fulva
- Common GreenshankTringa nebularia
- Green SandpiperTringa ochropus
Gulls & seabirds2 species
- Common GullLarus canus
- Black-headed GullChroicocephalus ridibundus
Ducks & geese21 species
- Eurasian WigeonMareca penelope
- MallardAnas platyrhynchos
- Eurasian TealAnas crecca
- Tufted DuckAythya fuligula
- Common PochardAythya ferinaVU
- GadwallMareca strepera
- Chinese Spot-billed DuckAnas zonorhyncha
- Falcated DuckMareca falcata
- Anas poecilorhynchaAnas poecilorhyncha
- Northern ShovelerSpatula clypeata
- Greater ScaupAythya marila
- Northern PintailAnas acuta
- SmewMergellus albellus
- Baer's PochardAythya baeriCR
- American WigeonMareca americana
- Baikal TealSibirionetta formosa
- GoosanderMergus merganser
- Common GoldeneyeBucephala clangula
- Red-breasted MerganserMergus serrator
- Ferruginous DuckAythya nyrocaNT
- Scaly-sided MerganserMergus squamatus
Herons, ibises & grebes11 species
- Grey HeronArdea cinerea
- Great CormorantPhalacrocorax carbo
- Great White EgretArdea alba
- Little GrebeTachybaptus ruficollis
- Great Crested GrebePodiceps cristatus
- Little EgretEgretta garzetta
- Eurasian BitternBotaurus stellaris
- Eared GrebePodiceps nigricollis
- Egretta intermediaEgretta intermedia
- Black-crowned Night-HeronNycticorax nycticorax
- Horned GrebePodiceps auritusVU
Storks & cranes1 species
- Common CraneGrus grus
Songbirds42 species
- Eurasian Tree SparrowPasser montanus
- Carrion CrowCorvus corone
- Large-billed CrowCorvus macrorhynchos
- Bull-headed ShrikeLanius bucephalus
- Brown-eared BulbulHypsipetes amaurotis
- White-cheeked StarlingSpodiopsar cineraceus
- Turdus eunomusTurdus eunomus
- SkylarkAlauda arvensis
- Meadow BuntingEmberiza cioides
- White WagtailMotacilla alba
- Daurian RedstartPhoenicurus auroreus
- Japanese WagtailMotacilla grandis
- Grey-capped GreenfinchChloris sinica
- Japanese Bush WarblerHorornis diphone
- Common Reed BuntingEmberiza schoeniclus
- Barn swallowHirundo rustica
- Masked buntingEmberiza personata
- Zosterops japonicusZosterops japonicus
- Rustic BuntingEmberiza rusticaNT
- Cinereous TitParus cinereus
- Poecile variusPoecile varius
- RookCorvus frugilegus
- Long-tailed RosefinchCarpodacus sibiricus
- Blue Rock ThrushMonticola solitarius
- HawfinchCoccothraustes coccothraustes
- Pale ThrushTurdus pallidus
- BramblingFringilla montifringilla
- Oriental Reed WarblerAcrocephalus orientalis
- Asian House MartinDelichon dasypus
- Zitting CisticolaCisticola juncidis
- Chestnut-eared BuntingEmberiza fucata
- Sand MartinRiparia riparia
- Grey-streaked FlycatcherMuscicapa griseisticta
- Eastern Red-rumped SwallowCecropis daurica
- Grey WagtailMotacilla cinerea
- Olive-backed PipitAnthus hodgsoni
- Little BuntingEmberiza pusilla
- Grey BuntingEmberiza variabilis
- Pallas's Reed HuntingEmberiza pallasi
- Chinese Grey ShrikeLanius sphenocercus
- Japanese GrosbeakEophona personata
- Narcissus FlycatcherFicedula narcissina
Other birds11 species
- CootFulica atra
- Oriental Turtle DoveStreptopelia orientalis
- Rock DoveColumba livia
- Common KingfisherAlcedo atthis
- Common MoorhenGallinula chloropus
- Japanese Pygmy WoodpeckerYungipicus kizuki
- Green PheasantPhasianus versicolor
- Japanese Green WoodpeckerPicus awokera
- Eastern Water RailRallus indicus
- Ruddy-breasted CrakePorzana fusca
- Great Spotted WoodpeckerDendrocopos major
Monthly presence relative to all bird records that month, so a busy month does not inflate every species.
When to go
The most species in February.
Species recorded in each month, with the usual temperature and rain.
- Jan5°/-3°72 mm
- Feb7°/-2°78 mm
- Mar11°/0°115 mm
- Apr17°/5°135 mm
- May22°/11°156 mm
- Jun25°/16°192 mm
- Jul28°/21°220 mm
- Aug29°/21°154 mm
- Sep25°/17°208 mm
- Oct20°/11°176 mm
- Nov14°/4°85 mm
- Dec8°/-1°82 mm
- Bar: species recorded that month.
- Temperature: average maximum / minimum (NASA, 1991–2020).
- Rain: monthly total.
The place
Inner Lake.
Lake in Ōmihachiman, Japan
Inner Lake is a wetland of international importance (Ramsar) in Japan.
107 bird species have been recorded here more than once, in 4,240 open records.
The most recorded are the Eurasian Wigeon, the Mallard and the Black Kite.
15 species come for the summer, 40 for the winter and 2 only pass through.
3 are threatened worldwide, including Common Pochard, Baer's Pochard and Horned Grebe.
The most species are recorded in February.

Get there and watch
- 新生キャンプ場campsite · 5.0 km · 1 within 10 km
- ビジネスホテル西ノ庄place to stay · 2.3 km · 36 within 10 km
- Ōmihachimannearest town · 3.6 km in a straight line
- Chubu Centrair International Airport (NGO)nearest airport with scheduled flights · 71 km in a straight lineCar hire at NGO airport (Tokoname)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
- 1marked trails within 4 km中山道(近江)
- 6visitor centres within 6 km城なび館, 楽市楽座館, 近江八幡観光物産協会 and 3 more
- 12viewpoints within 5 km水郷めぐり, 八幡山展望館 and 10 more
- 89car parks within 3 km
- 39restaurants and cafés within 3 km
- 1campsites within 10 km新生キャンプ場
- 36places to stay within 10 kmビジネスホテル西ノ庄, ヤマヘイビル, フラワー五番館 and 33 more
- bird hides within 6 km
- observation towers within 6 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 Inner Lake.
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.
Other places nearby.
Where these figures come from
| Name and type | Wikidata (Q17211143) · CC0 |
|---|---|
| Birds | 4,240 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, Lakeyas, Darkskyas |
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.






