Juvenile Dispersal of White-Tailed Eagles in Western Scotland

摘要: Abstract In long-lived raptors with delayed maturity, the period between fledging and settlement on a breeding site may take several years is poorly understood. our study of reintroduced population White-tailed Eagles (Haliaeetus albicilla), we investigated movements during this transient (juvenile dispersal) phase natal dispersal using records wing-tagged birds. Maximum juvenile distance (JDD), as measured from (or release) sites to locations recorded prior birds settling ranged 18 200 km in different individuals. Observation suggested that (1) most extensive occurred first two after fledging, (2) males initially dispersed further than females, but, their second year, females tended be males, (3) age approached, were closer females. JDD did not differ wild-bred released (reintroduced) ...