Natural cavities in trees are the most frequently used nest sites by owls. They also depend on cavities excavated by woodpeckers. The Brown Hawk Owl (Ninox scutulata), a common resident in Singapore as well as an uncommon winter visitor and passage migrant, breeds in mainly forested areas.
According to SK Foo, the Brown Hawk Owl has, over the years, been trying to nest in a particular tree in the MacRitchie forest (left). The bird has not been successful due to human disturbances and the presence of natural predators such as monitor lizards and monkeys. In November 2009 a Brown Hawk-Owl was occupying that particular tree hole and nature wardens were seeing to it that there would be no human disturbances. Hopefully the breeding would be successful.
This post is a cooperative effort between NaturePixels.org and BESG to bring the study of bird behaviour through photography to a wider audience.