| Titre : | Two grouse clutches in the same nest: evidence for nest site adoption in capercaillie (Tetrao urogallus) |
| Auteurs : | I. Storch, Auteur ; G. Segelbacher, Auteur |
| Type de document : | Article |
| Dans : | Journal of Ornithology (146(1) JAN 2005) |
| Article en page(s) : | 85-88 |
| Langues: | Anglais |
| Résumé : | We describe the case of an unusually large capercaillie Tetrao urogallus clutch consisting of 12 eggs, of which four chicks hatched. Eight eggs died in an early stage of development. Genetic analyses revealed that the putative mother of the chicks was different from the one laying the unhatched eggs. We compare our results with reports from clutches elsewhere and conclude that nest site adoption is a likely explanation for joint clutches in grouse. |



