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A medium-sized stork, Anastomus oscitan is commonly known as the Asian openbill. It inhabits wetland habitats including shallow estuarine marshes, lakes with a brackish water and flooded fields which are agricultural areas that serve as rice paddies. Both sexes are similar. The species has pale white or grey plumage with black wings and a forked black tail. It also has long pinkish to red legs and feet and dull, yellow-grey colour bill. The juvenile has brown tinge head, instead of white or pale grey in adulthood. The bill is dark grey with lower mandible almost straight and the gap forms later.
The Asian openbills are carnivores. It feeds mainly on apple snails, but it also consumes frogs, crabs, large insects, and other small aquatic animals. They typically feed alone but may form flocks in areas saturated with food. The gap in the bill allows good grasp of the snail’s shell. It extracts snail from the shell, with the pointed lower mandible.
Year Published | Assessment | Red List Category | Version |
---|---|---|---|
2016 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
3.1 |
2012 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
3.1 |
2004 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
N/A |
1994 | IUCN Red List of Threatened Species |
Near Threatened (NT)
|
N/A |
1988 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
N/A |
Profile | |
---|---|
Abdul Rahman (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds,
Biodiversity, Conservation, Ecosystems, Environment, Forest, Protected Areas & Wildlife Trade
|
Ahmad Khusaini Bin Mohd Kharip Shah (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds (Ecology),
Conservation
|
Birds,
|
|
Andrew Alek Tuen (Prof. Dr.)
Universiti Malaysia Sarawak (UNIMAS)
|
Mammals, Birds,
Protected Areas
|
Azmi Mat Ali (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds (Taxonomy),
Biodiversity, Conservation & Wildlife Trade
|
Farah Shafawati Mohd Taib (Dr.)
Universiti Kebangsaan Malaysia (UKM)
|
Birds, Mammals, Rodents, Treeshrews, Squirrels,
Biodiversity, Conservation, Data Analysis, Ecosystems & Taxonomy
|
Hasdi Hassan @ Asang (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds,
Conservation & Management
|
Ismail Bin Hj. Mamat (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds,
Biodiversity, Protected Areas & Invasive Alien Species
|
Meor Amran Bin Meor Zulkifilee (Mr.)
Birdgroup Taman Negara (BGTN)
|
Birds,
Business, Environment, Forest, Management & Tourism
|
Mohammad Shahfiz Azman (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Amphibians, Mammals, Birds, Amphibians, Reptiles,
Awareness, Biodiversity, Conservation, Ecosystems, Environment, Forest, Landscape, Law and Policy, Management, Protected Areas, Science, Systematics, Invasive Alien Species, Like-Minded Megadiverse Countries (LMMC), National Policy on Biological Diversity, Policy, Research and Development (R&D) & Zoonotic
|
Mohd Abdul Muin Bin Md Akil (Mr.)
Universiti Sains Malaysia (USM)
|
Amphibians, Birds, Reptiles, Snakes,
Biodiversity, Conservation, Evolution, Genetics, Molecular, Protected Areas, Climate Change & Invasive Alien Species
|
Mustafa Abdul Rahman (Prof. Dr.)
Universiti Malaysia Sarawak (UNIMAS)
|
Birds,
|
Rahmah Binti Ilias (Mrs.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds,
Biodiversity, Conservation, Protected Areas & Invasive Alien Species
|
Rosli Hashim (Prof. Dr.)
University of Malaya (UM)
|
Birds (Ecology), Mammals (Ecology), Spiders, Insects,
Biodiversity & Protected Areas
|
Rosli Ramli (Assoc. Prof. Dr.)
University of Malaya (UM)
|
Mammals (Ecology), Birds,
Biodiversity, Digital Sequence Information (DSI), Protected Areas & Marine & Coastal
|
Syaizwan Zahmir Zulkifli (Dr.)
Universiti Putra Malaysia (UPM)
|
Birds (Ecology), Fishes (Ecology), Molluscs (Ecology),
Biodiversity, Conservation, Ecosystems, Marine & Coastal & Water
|
Yeap Chin Aik (Mr.)
Malaysian Nature Society (MNS)
|
Birds (Ecology),
Awareness, Biodiversity, Biological Resource, Conservation, Ecosystems, Education, Forest, Landscape, Management, Protected Areas & Traditional Knowledge (TK)
|
Acknowledgements :- Ms. Ajla Rafidah Baharom, Mr. Allen Jeyarajasingam, Mrs. Aziemah Binti Kinan, Ms. Fatin Qurratul 'ain Binti Saberam, Mrs. Nur Hazwanie Binti Abd Halim, Mrs. Nurfarhana Hizan Binti Hijas, Mr. Tan Kok Kiat & Mr. Yasser Mohamed Arifin
Photo credit :- Mohd Rosmadi Hassan
Species Citation :- Anastomus oscitans. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/48115. [Retrieved 29 April 2024].
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