Little information on the natural ecology and behaviour of this rare forest bird is known, due to a lack of sightings and research. It is thought that breeding occurs in March on the island of Panay, and eggs and chicks are reportedly collected between May and July (5). Clutch size is estimated at between two and three eggs and nests have been recorded in Shorea polysperma trees, known locally as 'balakbakan' (5), or in disused woodpecker holes (2). Hornbills have an unusual nesting strategy where the female seals herself inside the tree cavity and relies on the male to bring food to her and the developing young throughout her imprisonment; in the case of the wrinkled hornbill this lasts until the chicks are fully fledged (7).
From the few records that exist, the major food component appears to be fruit; birds have been observed feeding on figs, and a flock of 25 to 30 birds were seen to feed in Aglaia trees when they were bearing fruit (5).