 By day, birds roost in leafy trees with plenty of cover, in colonies of up to 400 individuals, becoming active at dusk.Their social behaviour is poorly known on account of their nocturnal habits and shy nature, being difficult to approach when roosting.Within its range, the letter-winged kite generally breeds in an area covering the Diamantina and Lake Eyre drainage basins, Sturt Stony Desert, eastern Simpson Desert and Barkly Tableland, to Richmond, Queensland, and Banka Banka Station in the north and Boolkarie Creek, South Australia, in the south.