As well as writing numerous scientific papers, Mason has collaborated on several books about birds.
1980 – Nocturnal Birds of Australia. (With Richard Schodde. Illustrations by Jeremy Boot). Lansdowne Editions: Melbourne. (Whitley Medal 1981).
1997 – Zoological Catalogue of Australia: Aves (Columbidae to Coraciidae) v. 37. 2. (With Richard Schodde). CSIRO Publishing. ISBN0-643-06037-5
1998 – CSIRO List of Australian Vertebrates: A Reference with Conservation Status. (With Richard Schodde, M. Stanger, M Clayton, and J. Wombey). CSIRO Publishing. ISBN0-643-06256-4
1999 – The Directory of Australian Birds: Passerines. A taxonomic and zoogeographic atlas of the biodiversity of birds of Australia and its territories. (With Richard Schodde). CSIRO Publishing. ISBN0-643-06456-7