Indonesian Borneo

Whitehead's Trogon Harpactes whiteheadi ©Jason Bugay Reyes Website

Borneo as a whole is the third-largest island in the world, with an area of over 748,000 km2 (c.289,000 square miles). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda Islands, located north of Java, west of Sulawesi, and east of Sumatra and the Malaysian peninsular.

Kalimantan is the Indonesian portion of the island of Borneo. It constitutes 73% of the island’s area (c.546,000 km2), and consists of the provinces of Central Kalimantan, East Kalimantan, North Kalimantan, South Kalimantan, and West Kalimantan. The non-Indonesian parts of Borneo are Brunei and East Malaysia (Sabah & Sarawak). Colloquially in Indonesia, the whole island of Borneo is also called “Kalimantan”.

The largest river system is the Kapuas in West Kalimantan, with a length of 1,143 km (710 miles). Other major rivers include the Mahakam in East Kalimantan (980 km), the Barito, Kahayan, and Mendawai in South Kalimantan (1,090 km), 658 km, and 616 km long respectively). Sangkulirang-Mangkalihat Karst in East Kalimantan contains thousands of caves. The Schwaner Mountains stretch across the central province, 80% of which is covered in dense forest, peatland swamps, mangroves, rivers, and traditional agriculture land. Highland areas in the north-east are remote and not easily accessible.

Birding Kalimantan

The Borneo rainforest is estimated to be around 140 million years old, making it one of the oldest rainforests in the world. The current dominant tree group, the dipterocarps, has dominated the Borneo lowland rain forests for millions of years.  It is the centre of the evolution and distribution of many endemic species of plants and animals, and the rainforest is one of the few remaining natural habitats for the endangered Bornean Orang-utan. It is an important refuge for many endemic forest species, including the Borneo Elephant, Eastern Sumatran Rhinoceros, Bornean Clouded Leopard, Bornean Rock Frog, Hose’s Palm Civet and Dayak Fruit Bat.

Sentarum Lake National Park – ©RaiyaniM, CC BY-SA 4.0 via Wikimedia Commons

The WWF has classified the island of Borneo into seven distinct eco-regions. Most are lowland regions: Borneo lowland rain forests cover most of the island, with an area of 427,500 square kilometres; Borneo peat swamp forests; Kerangas or Sundaland heath forests; Southwest Borneo freshwater swamp forests (found in the island’s western and southern lowlands); Sunda Shelf mangroves; Borneo montane rain forests (in the central highlands of the island, above 3,300 feet); Kinabalu montane alpine meadows (a subalpine and alpine shrub-land notable for its numerous endemic species, including many orchids).

According to analysis of data from Global Forest Watch, the Indonesian portion of Borneo lost 10.7 million hectares (26 million acres) of tree cover between 2002 and 2019, of which 4 million hectares (9.9 million acres) was primary forest. Palm oil plantations have been widely developed and are rapidly encroaching on the last remnants of primary rainforest. Locals use fire to destroy the forest for planting.

Peat Forest Swamp – ©Ruanda Agung Sugardiman/AusAID, CC BY 2.0 via Wikimedia Commons

Peat swamp forests occupy the entire coastline of Borneo. The soil of the peat swamp is comparatively infertile, while it is known to be the home for a great variety of bird species including Hook-billed Bulbul, Helmeted and Rhinoceros Hornbills. The island’s lowland forests include 8 hornbill species, 18 woodpecker species and 13 pitta species. With more than 600 species and dozens of endemics, Borneo is a wonderful destination for birders. Traditionally, most western birders head for tours in the Malaysian parts of Borneo, but with one species confined to Indonesian Borneo and many of the specials present here Kalimantan has great potential.

Top Sites
  • Mahakam River

    Information
    Boat trips on the Mahakam River for rare waterbirds including Storm's Stork and White-shouldered Ibis.
  • Menyapa Mountains

    InformationSatellite View
    Hill and montane birding in the seldom visited Menyapa hills is not for the unadventurous, but new discoveries undoubtedly await those who try it.
  • NP Kayan Mentarang National Park

    InformationSatellite View
    Montane birding near the Sarawak border. Difficult access but maybe the best site for Bornean montane endemics in Kalimantan.
  • NP Kutai National Park

    InformationSatellite View
    Vast lowland forest area near Samarinda, with a great range of birds including many of Kalimantan's lowland specialities.
  • NP Tanjung Putting National Park

    InformationSatellite View
    Lowland forest in Kalimantan's south. Great for many of the lowland specialities.
  • Sunagai Wain Protected Forest

    InformationSatellite View
    Easily accessible lowland forest near Balikpapan, with a great range of species including Bornean Peacock-pheasant and Bornean Ground-cuckoo.
Contributors
Number of Species
  • Number of bird species: 612

    (As at August 2024)
Endemics
  • Number of endemics: 1

    Black-browed Babbler Malacocincla perspicillata
  • Number of endemics: 64 Borneo

    Although only 1 species is endemic to Kalimantan, there are many species found only on the island of Borneo. Numbers differ slightly according to source. The following list covers all sources giving 64 species, most of which are found in Kalimantan:

    Red-breasted Partridge Arborophila hyperythra
    Dulit (Hose's) Partridge Rhizothera dulitensis
    Bulwer's Pheasant Lophura bulweri
    Bornean Crestless Fireback Lophura pyronota
    Sabah Partridge Tropicoperdix graydoni
    Crimson-headed Partridge Haematortyx sanguiniceps
    Bornean Peacock-Pheasant Polyplectron schleiermacheri
    "Bornean Ground-Cuckoo " Carpococcyx radiceus
    Dulit Frogmouth Batrachostomus harterti
    Bornean Frogmouth Batrachostomus mixtus
    Bornean Swiftlet Collocalia dodgei
    Mountain Serpent-Eagle Spilornis kinabaluensis
    Whitehead's Trogon Harpactes whiteheadi
    Bornean Barbet Psilopogon eximius
    Golden-naped Barbet Psilopogon pulcherrimus
    Mountain Barbet Psilopogon monticola
    Brown barbet Caloramphus fuliginosus
    White-fronted Falconet Microhierax latifrons
    Hose's Broadbill Calyptomena hosii
    Whitehead's Broadbill Calyptomena whiteheadi
    Black-crowned Pitta Erythropitta ussheri
    Blue-banded Pitta Erythropitta arquata
    Bornean Banded-Pitta Hydrornis schwaneri
    Blue-headed Pitta Hydrornis baudii
    Bornean Whistler Pachycephala hypoxantha
    Black Oriole Oriolus hosii
    Bornean Bristlehead Pityriasis gymnocephala
    Bornean Black Magpie Platysmurus aterrimus
    Bornean Green-Magpie Cissa jefferyi
    Bornean Treepie Dendrocitta cinerascens
    Friendly Bush Warbler Locustella accentor
    Charlotte's Bulbul Iole charlottae
    Cream-eyed Bulbul Pycnonotus pseudosimplex
    Bornean Bulbul Rubigula montis
    Pale-faced Bulbul Pycnonotus leucops
    Bornean Stubtail Urosphena whiteheadi
    Chestnut-crested Yuhina Staphida everetti
    Pygmy White-eye Heleia squamifrons
    Mountain Black-eye Zosterops emiliae
    Meratus White-eye Zosterops meratusensis
    Bold-striped Tit-Babbler Mixornis bornensis
    Bare-headed Laughingthrush Melanocichla calva
    Chestnut-hooded Laughingthrush Pterorhinus treacheri
    "Black-throated Wren-Babbler " Turdinus atrigularis
    Black-browed Babbler Malacocincla perspicillata
    Mountain Wren-Babbler Gypsophila crassa
    Bornean Wren-Babbler Ptilocichla leucogrammica
    Everett's Thrush Zoothera everetti
    Fruithunter Chlamydochaera jefferyi
    White-crowned Shama Copsychus stricklandii
    Dayak Blue Flycatcher Cyornis montanus
    Meratus Blue Flycatcher Cyornis kadayangensis
    Bornean Blue Flycatcher Cyornis superbus
    Crocker Jungle Flycatcher Cyornis ruficrissa
    Eyebrowed Jungle Flycatcher Vauriella gularis
    Bornean Shortwing Brachypteryx erythrogyna
    Bornean Whistling-Thrush Myophonus borneensis
    Bornean Forktail Enicurus borneensis
    Yellow-rumped Flowerpecker Prionochilus xanthopygius
    Spectacled Flowerpecker Dicaeum dayakorum
    Black-sided Flowerpecker Dicaeum monticolum
    Whitehead's Spiderhunter Arachnothera juliae
    Bornean Spiderhunter Arachnothera everetti
    Bornean Leafbird Chloropsis kinabaluensis
    Dusky Munia Lonchura fuscans

Checklist
  • Avibase

    PDF Checklist
    This checklist includes all bird species found in Kalimantan , based on the best information available at this time. It is based on a wide variety of sources that I collated over many years. I am pleased to offer these checklists as a service to birdwatchers. If you find any error, please do not hesitate to report them.
  • eBird

    PDF Checklist
    This checklist is generated with data from eBird (ebird.org), a global database of bird sightings from birders like you. If you enjoy this checklist, please consider contributing your sightings to eBird. It is 100% free to take part, and your observations will help support birders, researchers, and conservationists worldwide.
Useful Reading

  • A Naturalist's Guide to the Birds of Borneo

    (Sabah, Sarawak, Brunei & Kalimantan) | By Wong Tsu Shi | John Beaufoy Books | 4th Edition | 2023 | Paperback | 176 pages, 300 colour photos, 3 colour maps | ISBN: 9781913679446 Buy this book from NHBS.com
  • Birds of Borneo

    By Susan Myers | Helm | 2022 | Paperback | 224 pages, colour photos | ISBN: 9781472986900 Buy this book from NHBS.com
  • Birds of the Philippines, Sumatra, Java, Bali, Borneo, Sulawesi, the Lesser Sundas and the Moluccas

    By Norman Arlott | William Collins (Harper Collins imprint) | 2018 | Hardback | 416 pages, 179 plates with colour illustrations; colour distribution maps | ISBN: 9780008102395 Buy this book from NHBS.com
  • Phillipps' Field Guide to the Birds of Borneo

    (Sabah, Sarawak, Brunei and Kalimantan) | By Quentin Phillipps & Karen Phillipps | John Beaufoy Books | 2014 | Edition 3 | 372 pages, 141 plates with colour illustrations, 600 colour distribution maps, 12 colour maps | ISBN: 9781909612150 Buy this book from NHBS.com
  • Pocket Photo Guide to the Birds of Borneo

    (Sabah, Sarawak, Brunei and Kalimantan) | By GWH Davison & Chew Yen Fook | Bloomsbury Publishing | 2016 | Paperback | 144 pages, colour photos, 1 colour map | Out of Print | ISBN: 9781472932877 Buy this book from NHBS.com
  • The Birds of Borneo

    By Bertram E Smythies | Edited by Geoffrey WH Davison | Natural History Publications Borneo | 1999 | Edition 4 | Hardback | 853 pages, 57 colour plates, b/w plates, map | ISBN: 9789838120289 Buy this book from NHBS.com
Organisations
  • Borneo Bird Club

    Facebook Page
    The Sandakan Borneo Bird Club
  • Burung Nusantara

    Website
    Kalimantan is massive, making up by far the biggest proportion of the island of Borneo. It is rarely visited by birders, however, many of whom prefer the easier birding of Sabah and Sarawak. For those interested to give Kalimantan a go you’ll certainly avoid the crowds, and several of the Bornean endemic species are much easier to be found here.
  • Kalimantan Birding Club

    Facebook Page
    A group of bird watchers or individuals who are interested in the hobby of researching birds and their habitats in the wild. The work area covers the island of Kalimantan and surrounding islands
Reserves

Abbreviations Key

  • *Protected areas of Kalimantan

    InformationSatellite View
    Interactive list of parks, reserves etc
  • NF Wehea Forest

    InformationSatellite View
    Wehea Forest is a 38,000 ha rainforest located in East Kutai Regency, East Kalimantan, Borneo. Wehea was declared a 'protected forest' in 2004 by the Wehea Dayak. Biodiversity studies in Wehea by Integrated Conservation and The Nature Conservancy found it is home to endangered species such as the Bornean orangutan, Sunda clouded leopard and sun bear. In 2011, a team of scientists re-discovered the endangered Miller's Grizzled Langur in Wehea Forest.
  • NP Betung Kerihun

    InformationSatellite View
    It is located inland, along the Malaysian border. The park was established in 1995, and has a total area of 8,000 km2 (3,100 sq mi) or about 5.5 percent of West Kalimantan Province area. Together with the 2,000 km2 (800 sq mi) Lanjak Entimau Wildlife Sanctuary in Malaysia, it has been proposed to form a World Heritage Site named the "Transborder Rainforest Heritage of Borneo" The fauna of the park is rich, with 300 species of bird (25 endemic to Borneo).
  • NP Bukit Baka Bukit Raya

    InformationSatellite View
    It is named after the mountains of Bukit Baka (1,620 metres) and Bukit Raya (2,278 metres), part of the Schwaner mountain range at the border of Central and West Kalimantan. The national park forms part of the Heart of Borneo conservation project. Bird species in the park include the black hornbill, helmeted hornbill, common emerald dove, little cuckoo-dove and Bornean peacock-pheasant.
  • NP Kayan Mentarang

    InformationSatellite View
    Kayan Mentarang National Park is a densely forested national park in East Kalimantan province, Borneo Island, Indonesia. The national park is named after a great dispersed Mentarang mountain trails plateau of Apau Kayan which covers the entire park from Datadian area in south region to Apau Ping area in mid region until Long Bawan in north region.
  • NP Kutai

    InformationSatellite View
    Kutai National Park is a lowland national park located on the east coast of Borneo Island, in the East Kalimantan province of Indonesia, few minutes south of the equator.
  • NP Lake Sentarum

    InformationSatellite View
    The Danau Sentarum National Park is a national park protecting one of the world's most biodiverse lake systems, located in the heart of Borneo Island, Kapuas Hulu Regency, West Kalimantan Province. The National Park is located in the western part of this basin, where three-quarters of the seasonal lakes occur. Approximately half of the park consists of lakes, while the other half consists of freshwater swamp forest. There have been 237 bird species recorded including the Storm's stork and great argus. Of the 143 mammal species 23 are endemic to Borneo including the proboscis monkey. There is a relatively large population of the endangered orangutans present in the park.
  • NP Mount Palung

    InformationSatellite View
    Mount Palung National Park lies on the island of Borneo, in the Indonesian province of West Kalimantan, north of Ketapang and east of Sukadana. The park is notable for its diversity of habitat types, ranging from mangrove and freshwater swamp forest, to lowland alluvial (empran bench) forest, to montane forest, and for its diversity of wildlife. It is one of only a handful of parks in the world where orangutans can be seen in the wild.
  • NP Sabangau

    InformationSatellite View
    Sabangau National Park (sometimes spelled Sebangau) is a national park in Central Kalimantan, a province of Indonesia in Kalimantan. he national park is centered on Sabangau River, a blackwater river. It flows through the Kelompok Hutan Kahayan or Sabangau peat swamp forest (5,300 km2), between the Katingan and Kahayan rivers. The peat swamp forest is a dual ecosystem, with diverse tropical trees standing on a 10m - 12m layer of peat - partly decayed and waterlogged plant material - which in turn covers relatively infertile soil. Vulnerable bird species include the large green pigeon (Treron capellei) and possibly Storm's stork (Ciconia stormi) and lesser adjutant (Leptoptilus javanicus).
  • NP Tanjung Putting

    InformationSatellite View
    The park is composed of 415,040 hectares of dryland dipterocarp forest, peat swampforest, heath forest, mangrove and costal beach forest, and secondary forest…
  • NR Baning Nature Tourist Park

    InformationSatellite View
    Baning Nature Tourist Park is a Nature Park located at Sintang Regency of West Kalimantan province of Indonesia in the island of Borneo. It is spread over an area of about 315 hectares. The park is covered by thousands of large trees and rich with various flora and rare fauna.
Sightings, News & Forums
Guides & Tour Operators
  • BirdQuest

    Tour Operator
    JAVA & BALI, INDONESIA – a feast of rare and localized Greater Sunda endemics, with Kalimantan Extension
  • Birding in Borneo

    Local Tour Operator
    Highlighted Species : Bornean Peacock Pheasant (Photo courtesy : Mr Agusdin), Bornean Ground Cuckoo, Blue-headed Pitta, Bornean Bristlehead, Malaysian Honeyguide, Large Frogmouth, Grey-breasted Babbler & etc..
  • Borneo Birding Tours

    Local Tour Operator
    We can organise tours to Kalimantan, Indonesia Borneo, for the Crestless Fireback and Black-browed Babbler ~ which was missing for more than 170 years and was rediscovered in 2020.
  • Borneo Eco Adventure

    Local Tour Operator
    ...There are at least 6 best diversity and accessibility birding sites in this Borneo of Indonesia, they are; Tanjung Puting National Park, Meratus Mountain, Sungai Wain Reserve, Mahakam River, Kutai National Park, and Maratua Island...
  • Vacation Indonesia Tours

    Tour Operator
    Vacation Indonesia Tours, owned by Nurlin Djuni & Darwin Sumang, is your gateway to Indonesia. We can immerse you in our culture, heritage and our extraordinarily diverse natural history. The Islands of Indonesia are justly famous for birdwatching. Over 372 species have been recorded and many are found nowhere else. Nurlin Djuni specialises in Birdwatching/Holidays Tours in Sulawesi, Halmahera, Papua, Java, Bali, Kalimantan, Lesser Sundas and Sumatera
Trip Reports
  • 2022 [08 August] - Dáni Balla

    PDF Report
    ...The first day was more of an exploration of the habitat, though we almost hit the jackpot when a Bornean GroundCuckoo was calling and we managed to lure it extremely well, before forest workers appeared and our chances seeing the bird were vanished. Some good species were seen though, Grey-hooded Babblers, Short-tailed Babblers and Rufoustailed Shama were showing well and the forest was full of the loud calls of Great Argus and even a Short-toed Coucal was calling once in the distance. We had a short shower when eating our lunch, fortunately we had shelter and it was perfect timing from the weather. Other species enjoyed during the day were Diard’s and Scarlet-rumped Trogons, Stork-billed Kingfisher, Crimson-winged Woodpecker, Rufous-winged Philentomas and a nice Yellow-bellied Bulbul to name a few...
  • 2022 [08 August] - Okamoto Keita Sin

    Report
    Kalimantan: Black-browed Babbler site, Meratus
  • 2023 [01 January] - Aidan Place

    PDF Report
    ...A third (somewhat rushed week) would be spent in Kalimantan visiting Gunung Besar and Serongga for the newly available specialty species there. In total 279 species were observed including 52 Bornean endemics...
  • 2023 [09 September] - Dáni Balla

    PDF Report
    This year’s tour began with the extension in Kalimantan Borneo. Here we spent all our time birding in Sungai Wain Protection Forest, where a magnificent patch of lowland rainforest was providing us with some Bornean endemics to be added onto our list. Birding was challenging sometimes as the forest looked empty, but with patience we managed to see a selection of Babblers including the Bornean endemic Grey-hooded and Bornean Black-capped as well as Bold-striped Tit-, Short-tailed, Ferruginous, Sooty-capped and Abbot’s. We were very lucky with a Black-throated Babbler pair showing 1 Java, Bali & Kalimantan (borneo) Tour Report 2023 - www.birdquest-tours.com themselves unusually well. Searching canopy living birds resulted in seeing a cooperative Green Broadbill, Banded Broadbills and Bornean Black Magpies. Trogons were very shy in the forest but several attempts to see them finally made us succeed with both Red-naped and Diard’s. One morning we were lucky to find a calling Banded Kingfisher (the Bornean Black-faced race) which soon was showing itself nicely for us. The only feeding flock we connected with was deep inside the forest and had some Babblers, Black-naped Monarch, Hairy-backed Bulbuls and superb Spotted Fantails. Grey-chested Jungle Flycatcher and Rufous-tailed Shama were commonly heard along the trails but seeing the latter one was way harder than the Flycatcher, but finally a pair came close enough to spot them on a late afternoon. Reaching the furthest point on the trail system rewarded us with a fantastic Garnet Pitta which took some time to lure closer so our local guide could spot it singing on a tree, completely open for us, thus later becoming the bird of the extension.
Other Links
  • Birding in Kalimantan

    Website
    Information about birding sites in Kalimantan, including key species, maps, access, local guides and resources. Kalimantan is massive, making up by far the biggest proportion of the island of Borneo. It is rarely visited by birders, however, many of whom prefer the easier birding of Sabah and Sarawak. For those interested to give Kalimantan a go you

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