Clifford Brodie Frith OAM (born 1949) is an Australian ornithologist and wildlife photographer.
[1] In 2002 Frith obtained his PhD at Griffith University, Queensland, for his 1200-page thesis "Evolutionary studies of bowerbirds and birds of paradise: affinities and divergence".
Most of 1968 was spent in tropical Australia on the Fifth Harold Hall Australian Expedition to the Kimberley and Arnhem Land areas.
He was resident ornithological staff scientist on Aldabra Atoll in the Indian Ocean for the Royal Society of London from 1972 to 1973.
He has produced two major ornithological text books: The Birds of Paradise: Paradisaeidae (1998), and The Bowerbirds: Ptilonorhynchidae (2004).