Gabo and Tullaberga Islands

Country/territory: Australia

IBA Criteria met: A4ii (2009)
For more information about IBA criteria please click here

Area: 158 ha

Protection status:

BirdLife Australia
Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2008 high not assessed not assessed
For more information about IBA monitoring please click here

Site description
This IBA consists of two neighbouring islands off the coast of Croajingolong National Park near Mallacoota in eastern Bass Strait. Gabo Island is a small (154 ha) granitic island located 500 m offshore about 14 km east of Mallacoota. Tullaberga is a very small (4 ha) granitic island closer to Mallacoota. The islands have a temperate maritime climate. The centre of Gabo Island has high dune ridges covered by low forest; the periphery of the island has low scrub and grassland dominated by Kikuyu Grass. Gabo has long been grazed by beef cattle and is designated as a Heritage Property and Historic Place by its managers, Parks Victoria. Tullaberga is covered in grass, forbs and low scrub, rises to only 8.5 m, and is part of Croajingolong National Park.

Key biodiversity
Gabo Island also supports more than 6,000 breeding pairs of Short-tailed Shearwater (Fullagar & Heyligers 1996), a maximum of four nests per year of Sooty Oystercatcher and one to three breeding females per year of Swamp Harrier.

Non-bird biodiversity: Gabo Island represents the southern-most location for Rock Fern Asplenium prostratum.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Gabo and Tullaberga Islands. Downloaded from on 24/07/2021.