| Titre : | Cluster of the Pygmy owl Glaucidium passerinum in a nest box for the Tengmalm's owl Aegolius funereus |
| Auteurs : | Helmut Meyer, Auteur |
| Type de document : | Article |
| Dans : | Ornithologischer Anzeiger (45(2-3) DEC 2006) |
| Article en page(s) : | 171-172 |
| Résumé : | In autumn 2005 a cluster of four completely white eggs was found in a nest box for Tengmalm's Owl in Perlacher Forst at the southern borderline of Munich. The measurements of the eggs showed that a Pygmy Owl had used the nest box for starting a brood. |



