Re-establishment of an endangered subspecies: the Norfolk Island boobook owl Ninox novaeseelandiae undulata

  • Published source details Olsen P.D. (1996) Re-establishment of an endangered subspecies: the Norfolk Island boobook owl Ninox novaeseelandiae undulata. Bird Conservation International, 6, 63-80.


This study is summarised as evidence for the following.

Action Category

Translocate owls

Action Link
Bird Conservation
  1. Translocate owls

    A study on Norfolk Island, Australia (Olsen 1996), found that the last remaining Norfolk Island boobook Ninox novaeseelandiae undulata (a female) paired with one of two male boobooks N. n. novaeseelandiae introduced from New Zealand in 1987 (the other disappeared shortly after release). The pair attempted unsuccessfully to breed in 1988 and 1991-3 but succeeded in 1989 and 1990, and fledged a total of four young. Two of these subsequently bred successfully themselves in 1993 and 1994, increasing the population to eleven birds, all alive in 1995.


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