 Additionally, the latter species is diurnal, not nocturnal.At night, the letter-winged kite could be mistaken for the eastern barn owl ("Tyto javanica") or eastern grass owl ("T. longimembris"), but these species have large heads; longer and trailing legs; blunted wings; and stockier bodies.The grey falcon ("Falco hypoleucos") has somewhat similar colouration to the letter-winged kite but is bulkier and heavier overall, and lacks the black markings.