Old German Owl Club Articles
The Old German Owl, A "New" Old Breed by: Helen Bresler September 1997
The Old German Owl--Getting Less Rare all the Time by John Verburg and Helen Bresler: July 1998
The Old German Owl - By: G.de Vries Jr. Avicultura #11 1998
History of the Old German Owl - Translated by John Verburg
The Pigeon Cote The Emerging Problem Of Pigeon Circovirus