Between 1970 and 1975, 1 128 Galahs and 685 White-tailed Black-Cockatoos were
marked with wing-tags so that the birds could be individually identified without resorting
to re-trapping. Tags have been worn by some cockatoos for eight years and do not
appear to have interfered with their behaviour or reproductive success. Similar wing-tags
have been used on Long-billed Corellas, Little Corellas, Red-tailed Black-Cockatoos and
Pink Cockatoos.
