Mongolia Ramsar wetland
Böön Tsagaan Lake
216 bird species recorded; the most in June.
Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data), CC BY 4.0, with relief shading from Copernicus WorldDEM-30
This month here
0 species in January.0 species in February.0 species in March.0 species in April.161 species in May.187 species in June.109 species in July.139 species in August.106 species in September.0 species in October.0 species in November.0 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.
No records for this month.
No records for this month.
No records for this month.
No records for this month.
VU
NT
NT
NTNT
VUNo records for this month.
No records for this month.
No records for this month.
- Resident all year
- Summer visitor comes to breed
- Winter visitor comes for the winter
- Passage migrant in spring and autumn
In numbers
216 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).
- 216Speciesrecorded more than once
- 134Migrantssummer, winter or passage visitors
- 11ThreatenedVulnerable, Endangered or Critically Endangered (IUCN)
- 8,883Recordsopen records within 6 km
- 1,311 mAltitudeabove the sea
- 18Raptors
- 1Owls
- 41Waders
- 16Gulls & seabirds
- 30Ducks & geese
- 9Herons, ibises & grebes
- 5Storks & cranes
- 78Songbirds
- 18Other 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 216 species.
By group, with the year in twelve cells: the darker the cell, the more often the bird is recorded that month.
Raptors18 species
JFMAMJJASOND
- Pallas’s fish eagleHaliaeetus leucoryphus
- Black KiteMilvus migrans
- Upland BuzzardButeo hemilasius
- Eastern Marsh-harrierCircus spilonotus
- Common KestrelFalco tinnunculus
- Long-legged BuzzardButeo rufinus
- Western Marsh HarrierCircus aeruginosus
- Steppe eagleAquila nipalensis
- Booted eagleHieraaetus pennatus
- Eurasian Black VultureAegypius monachusNT
- Lesser kestrelFalco naumanni
- White-tailed EagleHaliaeetus albicilla
- Gyps himalayensisGyps himalayensis
- Amur FalconFalco amurensis
- Hen HarrierCircus cyaneus
- Golden EagleAquila chrysaetos
- Common BuzzardButeo buteo
- Crested Honey BuzzardPernis ptilorhynchus
Owls1 species
JFMAMJJASOND
- Little OwlAthene noctua
Waders41 species
JFMAMJJASOND
- Kentish PloverCharadrius alexandrinus
- Pied AvocetRecurvirostra avosetta
- Northern LapwingVanellus vanellusNT
- RedshankTringa totanus
- Black-winged StiltHimantopus himantopus
- Pacific Golden PloverPluvialis fulva
- Little StintCalidris minuta
- Greater Sand PloverCharadrius leschenaultii
- Eurasian CurlewNumenius arquataNT
- Black-tailed GodwitLimosa limosaNT
- Wood SandpiperTringa glareola
- Temminck's StintCalidris temminckii
- Ruddy TurnstoneArenaria interpresNT
- Curlew SandpiperCalidris ferrugineaVU
- Asian DowitcherLimnodromus semipalmatusNT
- Red-necked PhalaropePhalaropus lobatus
- Common SandpiperActitis hypoleucos
- Broad-billed SandpiperCalidris falcinellusVU
- DunlinCalidris alpinaNT
- Spotted RedshankTringa erythropus
- Marsh SandpiperTringa stagnatilis
- RuffCalidris pugnax
- Grey PloverPluvialis squatarolaVU
- Long-toed StintCalidris subminuta
- Red-necked StintCalidris ruficollisNT
- Eurasian WhimbrelNumenius phaeopus
- Green SandpiperTringa ochropus
- Terek SandpiperXenus cinereus
- Common GreenshankTringa nebularia
- Common SnipeGallinago gallinago
- Sharp-tailed SandpiperCalidris acuminataVU
- Red KnotCalidris canutusNT
- Swinhoe's SnipeGallinago megala
- Little CurlewNumenius minutus
- Oriental DotterelCharadrius veredus
- Bar-tailed godwitLimosa lapponicaNT
- Pin-tailed SnipeGallinago stenura
- Common Ringed PloverCharadrius hiaticula
- SanderlingCalidris alba
- Gray-tailed TattlerTringa brevipes
- Oriental PratincoleGlareola maldivarum
Gulls & seabirds16 species
JFMAMJJASOND
- Black-headed GullChroicocephalus ridibundus
- Common TernSterna hirundo
- Caspian TernHydroprogne caspia
- White-winged TernChlidonias leucopterus
- Pallas's GullIchthyaetus ichthyaetus
- Gull-billed TernGelochelidon nilotica
- Little TernSternula albifrons
- Whiskered TernChlidonias hybrida
- Black TernChlidonias niger
- Brown-headed GullChroicocephalus brunnicephalus
- Relict GullIchthyaetus relictus
- Common GullLarus canus
- Little GullHydrocoloeus minutus
- Lesser Black-backed GullLarus fuscus
- Slender-billed GullChroicocephalus genei
- Black-legged kittiwakeRissa tridactylaVU
Ducks & geese30 species
JFMAMJJASOND
- Ruddy ShelduckTadorna ferruginea
- Greylag GooseAnser anser
- Common ShelduckTadorna tadorna
- Whooper SwanCygnus cygnus
- Swan GooseAnser cygnoides
- Bar-headed GooseAnser indicus
- MallardAnas platyrhynchos
- GadwallMareca strepera
- Northern ShovelerSpatula clypeata
- Eurasian WigeonMareca penelope
- Red-crested pochardNetta rufina
- Common PochardAythya ferinaVU
- GarganeySpatula querquedula
- Eurasian TealAnas crecca
- Northern PintailAnas acuta
- Tufted DuckAythya fuligula
- Ferruginous DuckAythya nyrocaNT
- Common GoldeneyeBucephala clangula
- Falcated DuckMareca falcata
- Mute SwanCygnus olor
- GoosanderMergus merganser
- Chinese Spot-billed DuckAnas zonorhyncha
- Taiga Bean GooseAnser fabalis
- Baer's PochardAythya baeriCR
- Bewick's SwanCygnus columbianus
- Red-breasted MerganserMergus serrator
- Greater White-fronted GooseAnser albifrons
- Stejneger's ScoterMelanitta stejnegeri
- SmewMergellus albellus
- Red-breasted GooseBranta ruficollisVU
Herons, ibises & grebes9 species
JFMAMJJASOND
- Great CormorantPhalacrocorax carbo
- Grey HeronArdea cinerea
- Eurasian SpoonbillPlatalea leucorodia
- Great Crested GrebePodiceps cristatus
- Great White EgretArdea alba
- Black-crowned Night-HeronNycticorax nycticorax
- Horned GrebePodiceps auritusVU
- Eared GrebePodiceps nigricollis
- Chinese Pond HeronArdeola bacchus
Storks & cranes5 species
JFMAMJJASOND
- Demoiselle CraneAnthropoides virgo
- Common CraneGrus grus
- Black storkCiconia nigra
- Hooded CraneGrus monachaVU
- Sandhill CraneGrus canadensis
Songbirds78 species
JFMAMJJASOND
- Shore LarkEremophila alpestris
- Asian Short-toed LarkAlaudala cheleensis
- Eurasian Tree SparrowPasser montanus
- SkylarkAlauda arvensis
- Northern RavenCorvus corax
- Citrine WagtailMotacilla citreola
- Mongolian LarkMelanocorypha mongolica
- Barn swallowHirundo rustica
- Isabelline wheatearOenanthe isabellina
- Sand MartinRiparia riparia
- Richard's PipitAnthus richardi
- Pale MartinRiparia diluta
- Isabelline ShrikeLanius isabellinus
- Pallas’s grasshopper warblerLocustella certhiola
- Rock SparrowPetronia petronia
- Hume’s leaf-warblerPhylloscopus humei
- Blyth’s PipitAnthus godlewskii
- Dusky warblerPhylloscopus fuscatus
- White WagtailMotacilla alba
- Grey WagtailMotacilla cinerea
- Desert wheatearOenanthe deserti
- Mongolian Ground-jayPodoces hendersoni
- Lesser whitethroatSylvia curruca
- Western Yellow WagtailMotacilla flava
- Water PipitAnthus spinoletta
- Mongolian FinchBucanetes mongolicus
- Greater Short-toed LarkCalandrella brachydactyla
- House SparrowPasser domesticus
- Eastern Yellow WagtailMotacilla tschutschensis
- Pallas's Reed HuntingEmberiza pallasi
- Spotted FlycatcherMuscicapa striata
- Paddyfield WarblerAcrocephalus agricola
- Two-barred WarblerPhylloscopus plumbeitarsus
- Brown ShrikeLanius cristatus
- Lanius excubitorLanius excubitor
- Desert WarblerSylvia nana
- Common ChiffchaffPhylloscopus collybita
- Red-throated ThrushTurdus ruficollis
- Yellow-breasted BuntingEmberiza aureolaCR
- Muscicapa latirostrisMuscicapa latirostris
- Eurasian Crag MartinPtyonoprogne rupestris
- Oriental Reed WarblerAcrocephalus orientalis
- Carrion CrowCorvus corone
- HawfinchCoccothraustes coccothraustes
- Daurian RedstartPhoenicurus auroreus
- Pied WheatearOenanthe pleschanka
- Common House MartinDelichon urbicum
- Greenish WarblerPhylloscopus trochiloides
- Crested larkGalerida cristata
- Black-faced buntingEmberiza spodocephala
- Northern WheatearOenanthe oenanthe
- Taiga FlycatcherFicedula albicilla
- Thick-billed WarblerIduna aedon
- RookCorvus frugilegus
- WhitethroatSylvia communis
- ChoughPyrrhocorax pyrrhocorax
- Lesser Short-toed LarkCalandrella rufescens
- Bearded ReedlingPanurus biarmicus
- Pere David's SnowfinchPyrgilauda davidiana
- Asian House MartinDelichon dasypus
- Olive-backed PipitAnthus hodgsoni
- Little BuntingEmberiza pusilla
- Pallas's Leaf WarblerPhylloscopus proregulus
- Lanceolated WarblerLocustella lanceolata
- BluethroatLuscinia svecica
- Kozlov's AccentorPrunella koslowi
- Daurian StarlingAgropsar sturninus
- Common Rock ThrushMonticola saxatilis
- Meadow BuntingEmberiza cioides
- Common Reed BuntingEmberiza schoeniclus
- Arctic warblerPhylloscopus borealis
- Yellow-browed WarblerPhylloscopus inornatus
- Rufous-tailed ShrikeLanius phoenicuroides
- Eurasian MagpiePica pica
- Rosy StarlingPastor roseus
- TwiteLinaria flavirostris
- Turdus eunomusTurdus eunomus
- Common StarlingSturnus vulgaris
Other birds18 species
JFMAMJJASOND
- European SwiftApus apus
- Pallas’s SandgrouseSyrrhaptes paradoxus
- CootFulica atra
- Rock DoveColumba livia
- Pacific SwiftApus pacificus
- Hill PigeonColumba rupestris
- Eurasian HoopoeUpupa epops
- Eurasian Collared DoveStreptopelia decaocto
- Common CuckooCuculus canorus
- Baillon's CrakePorzana pusilla
- Common MoorhenGallinula chloropus
- WryneckJynx torquilla
- Oriental Turtle DoveStreptopelia orientalis
- Common KingfisherAlcedo atthis
- Red Collared DoveStreptopelia tranquebarica
- European NightjarCaprimulgus europaeus
- Chukar PartridgeAlectoris chukar
- Eastern Water RailRallus indicus
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 June.
Species recorded in each month, with the usual temperature and rain.
- Jan-10°/-20°2 mm
- Feb-5°/-18°2 mm
- Mar4°/-9°3 mm
- Apr14°/-1°5 mm
- May20°/5°10 mm
- Jun26°/12°26 mm
- Jul29°/15°29 mm
- Aug27°/12°26 mm
- Sep20°/5°12 mm
- Oct10°/-3°3 mm
- Nov0°/-10°2 mm
- Dec-9°/-18°2 mm
- Bar: species recorded that month.
- Temperature: average maximum / minimum (NASA, 1991–2020).
- Rain: monthly total.
The place
Böön Tsagaan Lake.
Lake
Böön Tsagaan Lake is a wetland of international importance (Ramsar) in Mongolia, 1,311 m above the sea.
216 bird species have been recorded here more than once, in 8,883 open records.
The most recorded are the Great Cormorant, the Grey Heron and the Ruddy Shelduck.
133 species come for the summer, 0 for the winter and 1 only pass through.
11 are threatened worldwide, including Common Pochard, Curlew Sandpiper and Broad-billed Sandpiper.
The most species are recorded in June.
Get there and watch
- Bayansayrnearest town · 23 km in a straight line
- Bayankhongor Airport (BYN)nearest airport with scheduled flights · 136 km in a straight line
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
- bird hides within 6 km
- observation towers within 6 km
- marked trails within 4 km
- visitor centres within 6 km
- viewpoints within 5 km
- car parks within 3 km
- restaurants and cafés within 3 km
- campsites within 10 km
- places to stay within 10 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 Böön Tsagaan Lake.
The lakes, beaches, islands, rivers and mountains around this place, and its night sky, in the family's atlases.
Darkskyas1 dark-sky places within 30 kmBöön Tsagaan LakeBortle 1 · this place
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap). Links open when each site is online.
Other places nearby.
Böön Tsagaan Lake
Mongolia
- 86Birdyas Score
- 216Species
- 134Migrants
- 11Threatened
Where these figures come from
| Name and type | Wikidata (Q749776) · CC0 |
|---|---|
| Birds | 8,883 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 | 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.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Visit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Visit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Visit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit 
caves
Every cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.Visit dark skies
Where the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Visit 
viewpoints
Every viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit 
birdwatching
Every bird sanctuary and wetland with the species recorded month by month: who is resident, who comes for the summer, who only passes through.You are here
forests
Every forest with its land-cover rings, what grows and lives in it, and the best months to walk it.Coming soonVisit