Half Tide Rock is a small rocky island with an area of 0.13 ha, in south-eastern Australia. It is part of the Petrel Island Group, lying in Bass Strait close to Walker and Robbins Islands in north-west Tasmania.
Fauna Recorded breeding seabird, shorebird species include sooty oystercatcher and black-faced cormorant.Brothers, Nigel; Pemberton, David; Pryor, Helen; & Halley, Vanessa. (2001). Tasmania’s Offshore Islands: seabirds and other natural features. Tasmanian Museum and Art Gallery: Hobart.
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