|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|2008||low||not assessed||not assessed|
|For more information about IBA monitoring please click here|
Hippolyte Rock is a flat-topped granite island 5 km north-east of Cape Huay on the Tasman Peninsula of south-east Tasmania. It has spectacular cliffs up to 65 m in height, and the flat top slopes gently to the summit at the south-east end. The ten plant species present on the island include Poa poiformis, Tetragonia implexicoma and Carpobrotus rossii. Burrow nesting birds are limited by shallow soil, and the shallowness of burrows causes birds to be accessible to predation by Forest Raven. Boats land with difficulty. The IBA also includes the Thumbs, a 0.45 ha rock comprising three spires to the north-west of Hippolyte.
Hippolyte Rock also supports Peregrine Falcon, one pair of Sooty Shearwater, 3000 pairs of Fairy Prion and 1000-2000 pairs of Short-tailed Shearwater. Additionally, Australasian Gannet regularly loaf on the island, raising the possibility that this species could form a new breeding colony there. The Thumbs also support 20 pairs of Common Diving-Petrel.
Non-bird biodiversity: Metallic Skink; Australian and New Zealand Fur Seal.
BirdLife International (2019) Important Bird Areas factsheet: Hippolyte Rocks. Downloaded from http://www.birdlife.org on 22/01/2019.