Asian Openbill Stork
Asian Openbill StorkAsian Openbill StorkAsian Openbill StorkAsian Openbill Stork

Asian Openbill Stork

Anastomus oscitans

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
60–70% · Likely
overall probability at Yala National Park
657 Verified records at Yala National Park
May Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

The Asian openbill or Asian openbill stork (Anastomus oscitans) is a large wading bird in the stork family Ciconiidae. This distinctive stork is found mainly in the Indian subcontinent and Southeast Asia. It is greyish or white with glossy black wings and tail. Adults have a gap between the arched upper mandible and recurved lower mandible which is thought to be an adaptation that aids in the handling of snails, their main prey. Young birds are born without this gap. Although resident within their range, they make long distance movements in response to weather and food availability. Wikipedia →

60–70% of wildlife watchers report a Asian Openbill Stork sighting in Yala National Park, based on 657 days of visitor records from GBIF citizen-science data.

Closest Relatives at Yala National Park

Painted Stork
LC

Painted Stork

🌅 Crepuscular Bird

Mycteria leucocephala

60–70% · Likely
Lesser Adjutant
NT

Lesser Adjutant

🌅 Crepuscular Bird

Leptoptilos javanicus

20–30% · Possible
Black-necked Stork
LC

Black-necked Stork

☀️ Diurnal Bird

Ephippiorhynchus asiaticus

20–30% · Possible
Asian Woolly-necked Stork
NT

Asian Woolly-necked Stork

☀️ Diurnal Bird

Ciconia episcopus

20–30% · Possible

📅 Monthly Probability

60–70
Jan
60–70
Feb
60–70
Mar
60–70
Apr
60–70
May
50–60
Jun
50–60
Jul
50–60
Aug
60–70
Sep
50–60
Oct
60–70
Nov
60–70
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Kaziranga National Park 🇮🇳 India
60–70%
2 Yala National Park 🇱🇰 Sri Lanka
60–70%
3 Chitwan National Park 🇳🇵 Nepal
50–60%
4 Bandipur National Park 🇮🇳 India
30–40%
5 Minneriya National Park 🇱🇰 Sri Lanka
30–40%
6 Wilpattu National Park 🇱🇰 Sri Lanka
30–40%
7 Keoladeo National Park 🇮🇳 India
30–40%
8 Ranthambore National Park 🇮🇳 India
20–30%
9 Satpura National Park 🇮🇳 India
20–30%
10 Royal Bardia National Park 🇳🇵 Nepal
10–20%
11 Nagarhole National Park 🇮🇳 India
10–20%
12 Sundarbans National Park 🇮🇳 India
10–20%
13 Khao Yai National Park 🇹🇭 Thailand
5–10%
14 Kaeng Krachan National Park 🇹🇭 Thailand
5–10%
15 Periyar National Park 🇮🇳 India
<5%
16 Mudumalai National Park 🇮🇳 India
<5%
17 Kanha National Park 🇮🇳 India
<5%
18 Bandhavgarh National Park 🇮🇳 India
<5%
19 Royal Manas National Park 🇧🇹 Bhutan
<5%
20 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
<5%
21 Doi Inthanon National Park 🇹🇭 Thailand
<5%
22 Jim Corbett National Park 🇮🇳 India
<5%
23 Cat Tien National Park 🇻🇳 Vietnam
Insufficient data
24 Cuc Phuong National Park 🇻🇳 Vietnam
Insufficient data
25 Khao Luang National Park 🇹🇭 Thailand
Insufficient data
26 Khao Sok National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Asian Openbill Stork in Yala National Park?

About 62% of wildlife watchers report a Asian Openbill Stork sighting in Yala National Park, based on 657 days of visitor records from GBIF citizen-science data.

When is the best time to see Asian Openbill Stork in Yala National Park?

May has the highest sighting rate for Asian Openbill Stork in Yala National Park in our monthly data.

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