This is the only known specimen of this species. RMNH 89412: Collected by C.A.L.M. Schwaner in 1850. A full 3-D image and more information can be found at
Naturalis extinct birds (Photography: Huub Veldhuijzen van Zanten, ETI)
Taxonomic Notes :
Presumed extinct Bornean endemic.
Only known from the type specimen, which is held at Naturalis, the Netherlands National Museum of Natural History.