Native Animals
Leptoptilos javanicus
Lesser Adjutant
VU
Vulnerable
IUCN Red List of Threatened Species
ver 3.1, 2017
Taxonomy
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Kingdom
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Phylum
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Class
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Order
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Family
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Genus
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Specific Epithetjavanicus (Horsfield, 1821)
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Common Name
- Botak Kecil (Malay)
- Burung Botak (Malay)
- Lesser Adjutant (English)
- Upih Botak (Malay)
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ResidentialNative
Description
Leptoptilos javanicus is a very large stork measuring between 114 cm and 129 cm in length. It is commonly known as lesser adjutant and can be identified by its naked head, yellowish orange neck and hunched appearance. The upperparts of this stork are dark grey-black with dark underwings, while the underparts are white. The wedge-shaped bill is massive and yellowish with light corrugations on the base of its mandible. The breeding males show sexual dimorphism, in which they show coppery magenta spots on their wing coverts, small white triangular patch at the base of wings and redder head sides (IUCN, 2017). For the juveniles, the head and neck have more feather and their upperparts are less glossy. Usually, the lesser adjutant is solitary or in small loose groups and its main diet includes molluscs, fishes and crustaceans (Strange & Jeyarajasingam, 1993). Lesser adjutant can be found in South-East Asia and is restricted to mangrove habitats. It is listed as vulnerable under the IUCN Red List due to habitat loss and hunting pressure.
Assessment
| Year Published | Assessment | Red List Category | Version |
|---|---|---|---|
| 2017 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
3.1 |
| 2016 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2013 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2012 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2008 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2006 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2004 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 2000 | IUCN Red List of Threatened Species |
Vulnerable (VU)
|
N/A |
| 1996 | IUCN Red List of Threatened Species |
Vulnerable (VU)
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N/A |
| 1994 | IUCN Red List of Threatened Species |
Vulnerable (VU)
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N/A |
Biodiversity Experts
| Profile | |
|---|---|
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Abdul Rahman (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
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Birds,
Biodiversity, Conservation, Ecosystems, Environment, Forest, Protected Areas & Wildlife Trade
|
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Ahmad Khusaini Bin Mohd Kharip Shah (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
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Birds (Ecology),
Conservation
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Birds,
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Andrew Alek Tuen (Prof. Dr.)
Universiti Malaysia Sarawak (UNIMAS)
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Mammals, Birds,
Protected Areas
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Azmi Mat Ali (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
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Birds (Taxonomy),
Biodiversity, Conservation & Wildlife Trade
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Farah Shafawati Mohd Taib (Dr.)
Universiti Kebangsaan Malaysia (UKM)
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Birds, Mammals, Rodents, Treeshrews, Squirrels,
Biodiversity, Conservation, Data Analysis, Ecosystems & Taxonomy
|
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Hasdi Hassan @ Asang (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
|
Birds,
Conservation & Management
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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
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Mohammad Shahfiz Azman (Mr.)
Forest Research Institute Malaysia (FRIM)
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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
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Mohd Abdul Muin Bin Md Akil (Mr.)
Universiti Sains Malaysia (USM)
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Amphibians, Birds, Reptiles, Snakes,
Biodiversity, Conservation, Evolution, Genetics, Molecular, Protected Areas, Climate Change & Invasive Alien Species
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Mustafa Abdul Rahman (Prof. Dr.)
Universiti Malaysia Sarawak (UNIMAS)
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Birds,
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Rahmah Binti Ilias (Mrs.)
Department of Wildlife and National Parks (PERHILITAN)
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Birds,
Biodiversity, Conservation, Protected Areas & Invasive Alien Species
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Rosli Hashim (Prof. Dr.)
University of Malaya (UM)
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Birds (Ecology), Mammals (Ecology), Spiders, Insects,
Biodiversity & Protected Areas
|
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Rosli Ramli (Assoc. Prof. Dr.)
University of Malaya (UM)
|
Mammals (Ecology), Birds,
Biodiversity, Digital Sequence Information (DSI), Protected Areas & Marine & Coastal
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Syaizwan Zahmir Zulkifli (Dr.)
Universiti Putra Malaysia (UPM)
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Birds (Ecology), Fishes (Ecology), Molluscs (Ecology),
Biodiversity, Conservation, Ecosystems, Marine & Coastal & Water
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Yeap Chin Aik (Mr.)
Malaysian Nature Society (MNS)
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Birds (Ecology),
Awareness, Biodiversity, Biological Resource, Conservation, Ecosystems, Education, Forest, Landscape, Management, Protected Areas & Traditional Knowledge (TK)
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PM - Peninsular Malaysia; SBH - Sabah; SWK - Sarawak; SEA - Southeast Asia; W - World;
References
Book
- Field Guide to the Waterbirds of ASEAN, 2018. ASEAN-Korea Environmental Cooperation Unit (AKECU), South Korea. pp. 300.
- Looking at Loagan - A Journey Into Loagan Bunut National Park, Sarawak, 2006. Forest Research Institute Malaysia, Selangor, Malaysia. pp. 75.
- MNS Bird Conservation Council. 2015. A Checklist of the Birds of Malaysia Second Edition. Kuala Lumpur: Malaysian Nature Society - Bird Conservation Council, Malaysia. pp. 60.
- Asyraf, M., Mohd Abdul Muin, M.A., Shahrul Anuar, M.S. & Rahmad, Z. (2015). Pictorial Guide To The Plant and Bird Life of Byram Mangrove Forest, Penang. Penerbit USM, Malaysia. pp. 190.
- Francis, C.M. (1998). A Pocket Guide To The Birds of Borneo, Third Edition. The Sabah Society, Malaysia.
- Ilias, R., Aminurddin Ahmad, M., Yatim, H.S.H., Abu Hashim, A.K., Hassan, H., Othman, A. & Abidin, F.A.Z. (2007). Avifauna: Kuala Gula, Perak: Senarai Spesies. Jabatan Perlindungan Hidupan Liar dan Taman Negara Malaysia (PERHILITAN), Malaysia. pp. 21.
- Ismail, A., Faid, R, Ilias, R. & Yasak, M.N. (2010). The Adaptability of Released Milky Stork in Kuala Gula, Perak. Faculty of Science, Biology Dept., UPM and the Department of Wildlife and National Park, Peninsular Malaysia, Kuala Lumpur, Malaysia. pp. 62.
- Jamaludin, H., Yatim, H.S.H., Abu Hashim, A.K., Saaban, S., Hassan, H., Othman, A. & Mohamad Rufino, B.M. (2007). Avifauna: Paya Indah Wetlands: Senarai Spesies. Jabatan Perlindungan Hidupan Liar dan Taman Negara Malaysia (PERHILITAN), Malaysia. pp. 21.
- Jeyarajasingam, A., Norhayati, A., Yasser, M.A. & Ilias, R. (2016). Burung-burung Malaysia : Malaysia Biodiversity Information System (MyBIS). Penerbit UKM, Bangi, Malaysia. pp. 165. — [ Adobe PDF (PDF) ] — [ | eBook (EPUB) ]
- Maimon, A. (2008). Biodiversity of Sungai Pulai: Ramsar Site, Johor. Earth Observation Centre, Malaysia. pp. 97.
- Myers, S. (2009). A Field Guide to the Birds of Borneo. Simon Papps, Singapore. pp. 272.
- Omar, R. (2018). Birds of the Forests of Peninsular Malaysia: A Photographic Guide. Strategic Information and Research Development Centre, Malaysia. pp. 351.
- Rajendran, S. & Jeyarajasingam, A. (2021). Malaysian Birds - A Glimpse. Malaysian Nature Society (MNS), Malaysia. pp. 1-335.
- Rosla, M. (2014). Burung-burung di Semenanjung Malaysia: Hak Milik Kita yang Terlepas Pandang, Volume 1. Red Door To Hunt, Malaysia. pp. 369.
- Rosla, M. (2014). Burung-burung di Semenanjung Malaysia: Hak Milik Kita Yang Terlepas Pandang, Volume 2. Red Door To Hunt, Malaysia. pp. 359.
- Sasekumar, A. & Chong, V.C. (2012). Mangrove and Coastal Environment of Selangor, Malaysia. Universiti Malaya, Malaysia. pp. 290.
- Chan, K.S & See, C.M (2020). Coastal Mangrove Birds of Bagan Datuk, Perak. Malaysian Nature Society, Kuala Lumpur, Malaysia. pp. 80.
- Shaharuddin, M.I., Azahar, M., Razani, U., Kamaruzaman, A.B., Lim, K.L., Suhaili, R., Jalil, M.S. & Latiff, A. (2005). Sustainable Management of Matang Mangroves: 100 Years and Beyond. Jabatan Perhutanan Semenanjung Malaysia, Malaysia. pp. 531.
- Tan, K.K., Nurfarhana-Hizan, H. & Abdul Razak, M.N.R. (2020). Threatened Bird Species of Malaysia. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 42. — [ Adobe PDF (PDF) ]
- Jeyarajasingam, A. (2012). A Field Guide to the Birds of Peninsular Malaysia and Singapore 2nd Edition. Oxford University Press, Oxford. pp. 449.
Online
- Botak Kecil (Leptoptilos javanicus) di Semenanjung Malaysia. Jabatan Perlindungan Hidupan Liar & Taman Negara (PERHILITAN) January 16, 2018, from — [ Adobe PDF (PDF) ]
- IUCN Red List of Threatened Species. Retrieved November 30, 2016, from http://www.iucnredlist.org
- New mangrove forest reserve to be gazetted in Malaysia. The RAMSAR Convention Secretariat. Retrieved January 04, 2019, from https://www.ramsar.org/news/new-mangrove-forest-reserve-to-be-gazetted-in-malaysia
Report
- Report On Habitat And Ecological Research After Wavebreaker Project At Tanjung Piai Johor National Park. Perbadanan Taman Negara (Johor), Malaysia.
Unpublish
- Checklist of Biodiversity of Setiu (2019)
Publications
Acknowledgements :- Mr. Abdul Razak Mohd Nor Rasid, Mr. Ahmad Amir Firdaus Bin Mad Apandi, Ms. Aida Salihah Binti Abu Bakar, Ms. Ajla Rafidah Baharom, Mr. Allen Jeyarajasingam, Ms. Amirah Hasanah Binti Mazlan, Mrs. Aziemah Binti Kinan, Ms. Fatin Qurratul 'ain Binti Saberam, Ms. Norayuni Binti Ramlee, Ms. Norazah Binti Norddin, Ms. Nur Razan Faiqah Binti Zahili, Ms. Nurfarhana Hizan Binti Hijas, Ms. Nursyafiqa Madzlen, Mr. Tan Kok Kiat & Mr. Yasser Mohamed Arifin
Photo credit :- Hariri Yusof, Mohd Suhaimi Bin Mohd Yusof & Rosli Omar
Species Citation :- Leptoptilos javanicus. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/21735. [Retrieved 08 June 2023].
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