Java and Bali

Javan Small-toothed Palm Civet, Arctogalidia trivirgata trilineata, Halimun Nationa Park.

I visited Indonesia for the first time in June 2010 and after a meeting in Jakarta I had a few free days before leaving for New Caledonia. I have since visited several other Indonesian islands and returned briefly to Java in 2023 when I went in search of bats around Jakarta.

Gunung Gede National Park

Gunung Gede / Gede Mountain

IN 2010 I saw Ebony (or West Javan) and Grizzled Langurs, Wild Boar, Javan Ferret Badger, Javan Mongoose, Horsfield’s Tree Shrew, Black Giant Squirrels, Sunda Black-banded (Black-striped) Squirrels and Three-striped Ground Squirrels. 

West Javan Langur, Trachypithecus mauritius

There were Medium Bentwing Bats in a cave, Lesser Gymnure, Polynesian Rat, a Niviventer species, Common Palm Civet and an (introduced) Small Indian Civet

Halimun National Park

Silvery (Javan) Gibbon, Hylobates moloch

A night here produced Javan Gibbons, Black-banded Squirrels, a Black Giant Squirrel and my first Black-eared Pygmy Squirrel. After dark we had Common Palm Civet and Javan Small Toothed Palm Civet (my photos of which accidentally helped to rediscover the species).

Javan Small-toothed Palm Civet, Arctogalidia trivirgata trilineata

We also saw a Malay (Stink) Badger, Red Giant Flying Squirrels, Pencil Tailed Tree Mouse and Javan Sunda Spiny Rats.


Javan Slit-faced Bat (Nycteris javanica), Bogor

In June 2023 I spent a night in Jakarta on my way home for a trip to West Papual. With Carlos Bocos’s help we saw a colony of Javan Slit-faced Bats at Bogor and, in the middle of Jakarta, we saw Short-nosed Fruit Bats, a  Lesser Large-footed Myotis and Black Rats.

Community Reports

Sumatra & Java, 2023: Royle Safaris, 2 weeks & 42 species including Marbled Cat, Sumatran Orangutan and Javan Small-toothed Palm Civet.

Sumatra, Java & Bali, 2023: Royle Safaris, 17 days & 22 species including East and West Javan Langurs and Javan Small-toothed Palm Civet.

Gunung Halimun & Ujong Kulon, 2023: John Rogers, 2 weeks & 25 species including Javan Slow Loris, Grey-cheeked Flying Squirrel and Javan Leopard (plus the sounds of a Javan Rhino).

24 hours in Jakarta, 2023: Jon Hall, 1 night and 4 species including Javan Slit-faced Bat and Lesser Large-footed Myoti

Bali & Lombok, 2023: Jan Ebr, 2 weeks & 19 species including Javan Lutung, Horsfield‘s Treeshrew and Indomalayan Pencil-tailed Tree Mouse.

Bali, 2022: Paul Carter’s notes on seeing 12 species in Bali including Dugong, Geoffroy’s Rousette and East Javan Silvered Langur.

Gunung Gede, 2020: Hugh Lansdown, 4 days & 6 species including Javan Small-toothed Palm Civet.

Singapore, Java, Malaysia and Sumatra, 2019: Anita Ericson and Lars Petersson, 6 weeks & 63 species including – in Java – Spotted Giant Flying Squirrel, Javan Small-toothed Palm Civet and Javan Ferret Badger.

West Bali National Park, 2019: 4 days & 9 species including Javan Lutung, Black Giant Squirrel and Rusa Deer.

Sulawesi and Kerinci-Seblat, Sumatra (with a bit of Bali and Java too), 2018: Tomer Ben-Yehuda, 2 weeks & 30+ species including Babirusa and Bear Cuscus.

Ujung Kulong, 2018: Royle Safaris, 10 days & 19 species including Banteng and two Javan Rhinos!

Javan endemics, 2018: Royle Safaris, 6 days & 30 species including Javan Ferret BadgerJavan Gibbon and Javan Slow Loris.

Indonesia, 2016: Richard Webb, 2 weeks & 44 species including Western Tarsier, White-bearded Gibbon, Irrawaddy Dolphin and some nice bats.

Indonesia (Java, Sumatra, Sulawesi, Borneo and Bali), 2013: Dave Redfield and Richard White (INDRI tours), 22 days & 52 species including Pen-tail Treeshrew, Otter Civet and Mitred Langurs (all in Way Kambas, Sumatra).

Java & Sumatra, 2013: Richard Webb, 2 weeks & 38 species including all the Javan specialty primates and Javan Small-toothed Palm Civet, plus – on Sumatra – Banded Palm Civet, Flat-headed and Marbled Cats.

Java, 2012: Coke Smith, 12 days & 30 species including Banteng, Javan Palm Civet and a Javan Rhino!

Sulawesi, Sumatra and a bit of Java, 2012: Dominique Brugiere, 7 weeks & plenty of mammals including Babirusa, Sulawesi Warty Pig, Anoa, Banteng and Javan Ferret Badger.

Indonesia & Malaysia, 2011: Romain Bocquier, 6 weeks & 43 species including Marbled Cat and Sulawesi Dwarf Cuscus.

Javan Rhino Search & Taman Negara, 2011: Phil Telfer, 3 weeks & 28 species including Malaysian Tapir and the noise of a Javan Rhino.

Gunung Gede and Halimun NPs, 2010: Jon Hall, 4 days & 22 species including Silvery Gibbon, Sunda Stink Badger, Javan Ferret Badger and Javan Small-toothed Palm Civet.

Indonesia (esp. Sulawesi), 2009: Steve Anyon-Smith, 1 month & 20 mammals including Sulawesi Tarsier and Bear Cuscus.

Greater Sundas (West Malaysia, Borneo, Sumatra, Java), 2008: Tim Mitzen, 2 months and 55 mammals including a Sun Bear and Banded Palm Civet . A full trip report is here.

Also See

Checklist of the Mammals of Indonesia (March, 2020)

Indonesia Tips (November 2017)

Javan Rhino Photographs (July 2017)

Javan Rhino RFI (May, 2015)

Javan Rhino footage (February, 2015)

Indonesia Rat ID help (August, 2014)


A checklist for the mammals of Halimun National Park.


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