The Cambodian tailorbird (Orthotomus chaktomuk) is a species of bird endemic to Cambodia, likely confined to a single dense shrub habitat in the floodplain of the Mekong river.

[2] Since then, it has been spotted in various parts of Phnom Penh, including on a construction site where bird researcher Ashish John photographed it.

[5] The paper formally describing the Cambodian tailorbird was published in a special online early-view issue of the Oriental Bird Club's journal Forktail.

[2] Its specific name comes from a Khmer word which means four-faces, which describes where the bird is found: in the floodplain where the Bassac River, Mekong, and Tonlé Sap meet.

[5] The dense shrub habitat allowed it to remain undetected for so long despite living on the outskirts of a major city.