The letter-winged kite (Elanus scriptus) is a small, rare and irruptive raptor native to Australia. The adult is predominantly pale grey and white with black shoulders and red eyes. It has a highly distinctive black underwing pattern of a shallow ‘M’ or 'W' shape, seen when in flight. This distinguishes it from the otherwise similar black-shouldered kite. Roosting during the day in well-foliaged trees and hunting at night, it is the world's only fully nocturnal Accipitriformes...