| Titre : | Mirrored sequences of colonisation and abandonment by pairs of Golden Eagles Aquila chrysaetos |
| Auteurs : | Adam Watson, Auteur ; Stuart Rae, Auteur ; Sandy Payne, Auteur |
| Type de document : | Article |
| Dans : | Ornis Fennica (89(3) 2012) |
| Article en page(s) : | 229-232 |
| Langues: | Anglais |
| Résumé : | We report colonisation by extra breeding pairs of Golden Eagles, and subsequent abandonments, in part of northeast Scotland during 1895-1985. The number of pairs rose from three in 1895-1937 to eight by 1948, and then fell to four during 1959-71 in reverse of the colonisation sequence. This fits the concept of hierarchic quality of habitat used, or of bird quality. Possible mechanisms to explain this are discussed. |



