A complete checklist of the birds of the world /

Eitemau Tebyg

• Farming & birds /
  gan: O'Connor, Raymond J.
  Cyhoeddwyd: (1986)
• Bird ringing, by Chris Mead, with foreword by Sir Landsborough Thomson.
  gan: Mead, Chris, 1940-
  Cyhoeddwyd: (1974)
• Jurong Bird Park.
  gan: Yeoh, T. G.
  Cyhoeddwyd: (1971)
• A dictionary of English and folk-names of British birds, with their history, meaning, and first usage, and the folk-lore, weather-lore, legends, etc., relating to the more familiar species.
  gan: Swann, H. Kirke (Harry Kirke), 1871-1926
  Cyhoeddwyd: (1968)
• Call collect, ask for Birdman : the record-breaking attempt to sight 700 species of North American birds within one year /
  gan: Vardaman, James M.
  Cyhoeddwyd: (1980)