Sumatra

Siberut Island mammal records (Sumatra, Indonesia; 2024), v3.

SUMMARY: On a six-day visit (7-12 Sep 2024) with Ian Thompson to the Toloulaggo Village area on Siberut Island we saw 13 mammal species of which 12 were endemic to the Mentawai Islands, as well as another 4 species without confirmed identification. Highlights included: Golden-bellied Treeshrew, Kloss’s Gibbon, Siberut Langur, Mentawai Long-tailed Giant Rat and Siberut Flying Squirrel (Petinomys lugens). We also saw Sipora Flying Squirrel (Hylopetes sipora), noting that literature and databases do not include Siberut in range for this species. Following discussions with Daan Drukker in 2025 we realized that some images were of Mentawai Flying Squirrel (Iomys sipora).

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Way Kambas (Sumatra) mammal trip – Aug 2014

Pen-tailed Tree-shrew
Pen-tailed Tree-shrew

I visited Way Kambas NP, South Sumatra, in August 2014 and used Hari, an excellent local guide, for much of my time there. The 31 mammal species seen included great views of Pen-tailed Treeshrew, Black-eared Pygmy Squirrel, Indomalayan Pencil-tailed Tree Mouse, six bats; and a brief view of Marbled Cat. Birds included Large Frogmouth, Reddish Scops Owl, Buffy Fish Owl, Brown Hawk Owl, Crested Fireback and White-winged Duck.

Link to trip report (pdf) including photos: 20140816-WayKambas(Sumatra)-PaulCarter-TRv2