Duetting and antiphonal song in birds; its extent and significance.

Míreanna comhchosúla

• Bird song: acoustics and physiology /
  de réir: Greenewalt, Crawford H., 1902-
  Foilsithe / Cruthaithe: (1968)
• A guide to bird songs : descriptions and diagrams of the songs and singing habits of land birds and selected species of shore birds /
  de réir: Saunders, Aretas Andrew, b. 1884
• Songs of the birds : poems.
  de réir: Garstang, Walter, 1868-1949
  Foilsithe / Cruthaithe: (1922)
• The migrations of birds.
  de réir: Dorst, Jean, 1924-
  Foilsithe / Cruthaithe: (1962)
• The migrations of birds /
  de réir: Dorst, Jean, 1924-
  Foilsithe / Cruthaithe: (1962)