Speciation in the genus Amytornis Stejneger (Passeres: Muscicapidae: Malurinae) in Australia. The relationship between seasonal movements and the development of geographic variation in the Australian chats (Epthianura Gould and Ashbyia North (Passeres: Muscicapidae: Malurinae). Geographic variation in the weebill, Smicrornis brevirostris (Gould) (Passeres: Muscicapidae: Malurinae), a sedentary species with a continuous range. Variation and speciation in the Australian Campephagidae (Passeres).
