 He was a member of the Royal Australasian Ornithologists Union (RAOU), president 1951–1952, and made a fellow of the Royal Australasian Ornithologists Union in 1973.He described Pycroft's petrel ("Pterodroma pycrofti" ).Falla's skink ("Oligosoma fallai") is named for him, as is the Ornithological Society of New Zealand's Robert Falla Memorial Award.