Mammals Active at night

Balabac Chevrotain

Tragulus nigricans

iNaturalist Wikipedia

Meet the Philippines' 'living fossil,' a miniature hoofed marvel no larger than a house cat. Found only on a handful of islands, the Balabac Chevrotain is an enchanting bridge to the ancient past of ungulate evolution.

0 Sightings

0 Habitats

Quick Identification

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Size

Length: 40-50 cm (16-20 in); Shoulder Height: 18 cm (7 in); Weight: 0.7-1.5 kg (1.5-3.3 lbs)

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Colors

Dark brown to nearly black upperparts with orange-brown flanks; white underparts; three distinct white stripes on the throat.

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Key Features

Smallest hoofed mammal in the Philippines
Elongated canine 'tusks' in males instead of antlers
Horizontal pupils providing wide peripheral vision
Slender, pencil-thin legs with an arched back

When You’ll See Them

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Activity pattern Active at night

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Peak hours 7 PM - 4 AM

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Season Year-round

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Diet Primarily herbivorous, focusing on fallen fruits, succulent leaves, and young shoots. They may occasionally supplement their diet with seeds or small insects found while foraging in the leaf litter.

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Habitat Primary and secondary lowland forests, mangrove swamps, and dense tropical thickets.

public Geographic range

Where Does the Balabac Chevrotain Live?

This elusive mammal is native to the Southeast Asian archipelago, specifically found within the Palawan Faunal Region of the Philippines. Its core range is extremely restricted, limited primarily to the island of Balabac and the neighboring smaller islands of Ramos and Bugsuc. Because it is a localized endemic, you won't find this unique mouse-deer anywhere else in the wild outside of this small island cluster southwest of mainland Palawan.

Basemap © OpenStreetMap contributors

1 Countries

600 km² Range

Endangered Conservation

PH Philippines

Marginal

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iNaturalist / Verified observation data

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Behavior

The Balabac Chevrotain, locally known as the pilandok, is a reclusive and primarily nocturnal ruminant. Unlike true deer, they lack antlers; instead, males possess elongated, tusk-like upper canine teeth used for defense and competing for mates. They are largely solitary creatures, navigating the dense forest floor with remarkable stealth. Their shy nature makes them difficult to observe, as they tend to freeze or dash into thick undergrowth at the slightest disturbance.

Despite their diminutive size, they are territorial and mark their paths using scent glands located under their chin. While they are ruminants with a multi-chambered stomach, their lifestyle is more akin to a large rodent or a primitive ungulate, spending the daylight hours hiding in hollow logs or thick vegetation before emerging at dusk to forage for fallen fruits and leaves.

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Camera Tips

Capturing the Balabac Chevrotain on camera requires patience and strategic placement due to their extreme shyness and nocturnal habits. Position your camera very low to the ground—no higher than 6 to 10 inches—to match their small stature. Angle the lens to be level with the forest floor or slightly upward if placing it on a slope. Focus your efforts on established game trails or near the base of large fruit-bearing trees, as these animals frequently return to reliable food sources.

Since they are most active under the cover of darkness, ensure your camera has a high-quality 'no-glow' infrared flash that won't startle them. Avoid using standard white light flashes, which might cause them to flee and avoid the area for days. Setting your camera to a 15-30 second video mode is highly recommended, as they move with a quick, delicate, and sometimes jerky gait that can be difficult to appreciate in a single still photo. The video will also help you spot the characteristic 'eye shine' from their horizontal pupils.

In terms of timing, while they can be seen year-round, the dry season often forces them to visit permanent water sources more frequently, making stream banks an excellent spot for camera traps. Ensure your camera's trigger speed is set to its fastest possible setting (0.2s or faster if available), as these 'mouse-deer' can vanish into the shadows in the blink of an eye. If you are in their native range, look for areas with dense leaf litter where their foraging footsteps might give away their location.

Similar Species

Species that look similar or are commonly confused with Balabac Chevrotain.

Greater Mouse-deer

The Greater Mouse-deer is larger and has a lighter, more orange-brown coat compared to the nearly blackish-brown of the Balabac species.

Lesser Mouse-deer

Significantly smaller than the Balabac Chevrotain, the Lesser Mouse-deer also lacks the dark, melanistic appearance of the Philippine endemic.

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Frequently Asked Questions

Balabac Chevrotain are primarily nocturnal, meaning they are most active during the night. They typically emerge from their hiding spots at dusk and forage until dawn, avoiding the heat and predators of the daylight hours.

Because this species is endemic to a very small group of islands in the Philippines, you can only attract them if you live in Balabac or nearby islands. Maintaining dense, natural vegetation and planting native fruit-bearing trees is the best way to provide a habitat they feel safe in.

Their diet consists mainly of fallen fruits, young leaves, and shoots. They are ruminants, which means they ferment their food in a complex stomach, though they are much more selective than larger deer, focusing on high-energy plant parts.

No, they are quite rare and listed as Endangered. They prefer dense forest cover and mangroves. While they may occasionally venture near forest-edge gardens, they generally avoid human-populated areas due to their shy nature and threats from domestic dogs.

The Balabac Chevrotain is distinguished from its close relative, the Greater Mouse-deer, by its much darker, almost blackish fur on its back and the three very distinct white stripes on its throat. It is also generally smaller than the Greater Mouse-deer found in other parts of Southeast Asia.

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