Picked up this owl carcass on 23 March 2014 after it collided with a building and thought it was just an ordinary Brown Boobook (Ninox scutulata), which is known to reside in and migrate through Singapore.

After a tip off from a fellow ornithologist, I took a closer look at the wing formula and surprise, surprise, it’s actually a Northern Boobook (Ninox japonica), a new species record for Singapore and a considerable extension of the species’s migratory range southward down the Malay Peninsula.

My colleagues and I have published a paper based on this carcass and several other recent records of the species in the region, which is available here: DNA reveals long-distance partial migratory behavior in a cryptic owl lineage

Source: David Tan, on Dead Birds Facebook Group