White-tailed eagle only from the mainland. Also Rùm hosts large seabird colonies that make for viable prey, including eider, shag ("Phalacrocorax aristotelis"), auks and gulls; as well as one of the few in Britain of manx shearwater ("Puffinus puffinus"). Furthermore, mainly as a source of carrion, were a population of around 1500 red deer and 200 feral goats; otters and gulls were also numerous and available to kleptoparasitize. The birds to be used for reintroduction were gathered as nestlings from western Norway, as this is the nearest native breeding population. The young eagles were either kept in high grade fowl cages or
Flinders Island provided by many small streams, few of them permanently flowing directly leading to the waters of Bass Strait or such a lagoon. The coastal areas are mainly covered in scrub or shrubs, whereas the vegetation at a higher elevation consists of woodland, mainly eucalyptus species. The total number of plant species in the Furneaux Group well exceeds 800, showing the great biodiversity of its ecosystem. Native bird species include the Cape Barren goose ("Cereopsis novaehollandiae") and the short-tailed shearwater ("Puffinus tenuirostris"). Marsupial mammals are represented by Bennett's wallaby ("Macropus rufogriseus"), brushtail possum ("Trichosurus vulpecula"), eastern pygmy possum ("Cercartetus nanus"), potoroo