Chinese Muntjac Spotted in Belgium Threatens Ecosystems

A Chinese muntjac deer has been sighted in Pelt, Belgium, prompting urgent warnings from environmental authorities who describe the invasive species as a “dangerous grazing machine” capable of causing entire ecosystems to collapse. The sighting was reported by the game management working group of the Agency for Nature and Forests (ANB) on July 23, 2026, in the vicinity of Haagdoorndijk and Scoutsdreef.

A Voracious Invader

The Chinese muntjac (Muntiacus reevesi), also known as Reeves’s muntjac or the “barking deer,” is one of the smallest deer species, standing approximately 50 to 60 centimeters at the shoulder. Despite its unassuming appearance, the animal poses a severe threat to native biodiversity. According to VRT NWS, ANB expert Jeroen Denaeghel warned: “They are real grazing machines that can cause ecosystems to collapse.”

The muntjac’s diet is remarkably broad — it consumes leaves, shrubs, fruits, nuts, bark, herbs, fungi, and even eggs and carrion. This indiscriminate feeding behavior strips the undergrowth of vegetation, depriving insects and birds of their food sources and disrupting the entire ecological chain.

Lessons from the UK

Denaeghel pointed to the situation in England as a cautionary tale. “In England this led to an ecological disaster. Rare species have even gone extinct there due to the muntjac. We want to avoid that here at all costs,” he told VRT NWS. The UK population of Chinese muntjacs grew from an estimated 52,000 in 1995 to 104,000 by 2008, spreading throughout England south of the Humber and causing extensive damage to woodlands, gardens, and agricultural crops.

Native to southeastern China and Taiwan, the species was brought to Europe in the 19th century as an ornamental animal for zoos and private collections. Escapes from captivity allowed the species to establish feral populations, particularly in the United Kingdom. As Wikipedia notes, the species first appeared in Flanders in 2000 and has since been observed in all five Flemish provinces, with most sightings concentrated in Antwerp and Limburg.

EU-Listed Invasive Species

Since 2016, the Chinese muntjac has been listed on the EU List of Invasive Alien Species of Union concern, making it illegal to import, breed, transport, commercialize, or intentionally release the animal anywhere in the European Union. According to Ecopedia, the Flemish knowledge platform on nature, active control of this invasive exotic is necessary to protect native biodiversity. Given the species’ limited current distribution in Flanders, total removal is the goal — not merely containment.

Public Appeal for Sightings

Mayor Dennis Fransen has called on residents to help track the animal’s movements. “To map the animal’s movements, we want to call on the residents of Pelt together with the Agency for Nature and Forests,” Fransen said, as reported by the municipality of Pelt.

Residents who spot the muntjac or its tracks are urged to report their observations via the WildInzicht website (www.wildinzicht.be) by the end of July 2026. The goal is to implement an “Early Warning Rapid Response” system — detecting and removing invasive exotics before they can establish breeding populations. Based on the reports, wildlife managers may deploy trail cameras and take further control measures.

What to Watch For

The muntjac is a secretive, crepuscular animal that is most active at dawn and dusk. It can be identified by its reddish-brown coat, small antlers (in males), distinctive canine tusks, and a sharp, barking call when disturbed — earning it the nickname “barking deer.” The species reproduces rapidly, with females reaching sexual maturity within their first year and capable of producing two litters annually.

The Stakes

The sighting in Pelt represents a critical test case for invasive species management in Belgium. If the muntjac establishes a breeding population, it could inflict lasting damage on native ecosystems, compete with native roe deer for resources, and cause economic harm to gardens, tree nurseries, and agriculture. The success of the rapid response effort will depend heavily on public cooperation in reporting sightings.

As Denaeghel emphasized: “The call applies to everyone: the moment you see a muntjac, just let us know as soon as possible.” The coming weeks will determine whether Belgium can prevent the ecological damage that has already unfolded across the English countryside.