The cry of a bird /

Eitemau Tebyg

• Vanishing birds : their natural history and conservation /
  gan: Halliday, Tim, 1945-
  Cyhoeddwyd: (1978)
• Wild birds at home,
  gan: Herrick, Francis Hobart, 1858-1940
  Cyhoeddwyd: (1935)
• Extinct and vanishing birds of the world,
  gan: Greenway, James C. (James Cowan), 1903-
  Cyhoeddwyd: (1967)
• Making friends with birds.
  gan: Park, Arthur F.
  Cyhoeddwyd: (1948)
• The geology of North Cornwall / by Henry Dewey. The petrology of the St. Austell Granite / by T.C.F. Hall. ; edited by Horace Woollaston Monckton.
  gan: Dewey, Henry