While orangutans are the star attraction, Semenggoh Nature Reserve is also home to a surprising variety of other wildlife and plant species roaming its 1,613-acre protected forest. Visitors who keep their eyes open during the walk to the feeding platform or around the visitor center often spot several other creatures along the way.
Mammals and Reptiles
Beyond the resident orangutans, the reserve shelters bearded pigs, porcupines, and several squirrel species, including the giant squirrel and pygmy squirrel. Gibbons also inhabit the forest canopy, occasionally heard calling even when not directly visible. Semenggoh is home to resident crocodiles as well, which visitors can typically observe near a dedicated enclosure rather than roaming freely through the reserve.
Birds
Bird enthusiasts have a good chance of spotting hornbills, one of Borneo’s most iconic and photogenic species, along with numerous other bird varieties scattered throughout the forest canopy. The dense rainforest habitat supports a healthy diversity of birdlife, making Semenggoh worthwhile for casual birdwatchers even on days when orangutan sightings are scarce.
Other Attractions Within the Reserve
Semenggoh also functions as a research and rehabilitation center that has historically cared for honey bears (sun bears) in addition to orangutans and hornbills. The reserve includes a botanical research center featuring a picturesque bamboo garden and a pond with a floating pavilion, giving visitors a scenic spot to explore beyond wildlife viewing. There’s also an Orangutan Museum on-site where guests can learn about orangutan behavior and conservation efforts while also viewing the resident crocodiles up close.
Wildlife Viewing Summary
| Animal/Feature | Where to Spot It | Notes |
|---|---|---|
| Orangutans | Feeding platform | Main attraction, semi-wild and free-roaming |
| Crocodiles | Dedicated enclosure/museum area | Resident, not free-roaming |
| Hornbills | Forest canopy | Iconic Borneo bird species |
| Gibbons | Forest canopy | Often heard before seen |
| Giant & pygmy squirrels | Forest trails | Rare, smaller mammals |
| Bearded pigs | Forest floor | Occasionally spotted along paths |
| Porcupines | Forest floor | Nocturnal, less commonly seen |
| Various bird species | Throughout reserve | Good for casual birdwatching |
Practical Tips for Spotting Other Wildlife
Since the reserve’s schedule centers around the two orangutan feeding windows, visitors have limited free time to explore beyond the platform, so it helps to arrive early and take the walking trail rather than the buggy to increase chances of spotting other animals along the way. The botanical garden and Orangutan Museum offer worthwhile stops if you have time before or after a feeding session, especially on days when orangutan sightings are unlikely due to fruiting season. Bringing a good camera or binoculars can also help catch hornbills or squirrels that tend to stay higher in the canopy and move quickly through the trees.
Semenggoh’s forest setting means that even a “quiet” orangutan day can still deliver a rewarding wildlife experience thanks to the reserve’s broader biodiversity, from crocodiles and hornbills to gibbons and rare squirrel species.