Occasionally traces of their nests can be found in man-made constructions such as drainage holes or toilets’ water tanks.

Their staple diet includes katydids, moths, millipedes, and other invertebrates.

Occasionally they feed on geckos, lizards or even Japanese White-eye and other small vertebrates.

The size of the holes is usually a diameter at breast height (dbh) of more than 38 cm.

Observation had revealed that tree holes are more likely to form in Pometia pinnata compared to other types of tree, therefore, areas with lots of Pometia pinnata have greater densities of the Otus elegans botelensis.