
Photo: Unknown author (Tropenmuseum collection, via Wikimedia Commons) · CC BY-SA 3.0 (May be cropped or resized)
Rhizothera longirostris
Diet
Seeds, fruit and invertebrates
Habitat
Lowland and hill rainforest
Range
Malay Peninsula, Sumatra and Borneo
Size
30–35cm
The long-billed partridge is a reddish-brown forest bird named for its unusually long, slightly downcurved bill. Males and females differ in face and underpart pattern, but both have strong legs adapted for walking and scratching. It inhabits lowland and hill rainforest on the Malay Peninsula, Sumatra and Borneo, where pairs forage through leaf litter for seeds, fruit and invertebrates (Wikipedia, general species account). It is Nationally Critically Endangered (Thailand Red Data 2025).