The white winged triller is a small cuckoo-shrike. The female and the male are entirely different colours, the male is pied whilst the female is brown and white. They are widespread throughout Australia.They live on insects, fruit and nectar.
Male
I saw these birds are in the Greater Bendigo National Park, about 200 metres from where I live in suburban Bendigo. They have probably been there forever, but this is my first sighting, of trillers,in this area.
Female, this bird would not move into the sunlight so this was all that was possible