|Central coordinates||147o 28.98' East 43o 3.21' South|
|IBA criteria||A4i, A4ii|
|Altitude||0 - 100m|
|Year of IBA assessment||2009|
Summary The Betsey Island IBA harbours over 1% of the global population of Short-tailed Shearwater, Black-faced Cormorant and Little Penguin.
Site description Betsey Island and Little Betsey Island are located just off the south-east coast of Tasmania between Tasman Peninsula and Bruny Island. Betsey Island (175 ha) has steep rocky cliffs on the east, south and west sides and a small rocky beach on the north. The west side has a gentler slope gradient and open sandy terrain which is more suitable for burrowing birds. Open woodlands consisting of Tasmanian Blue Gum cover most of the island. The main rock type is dolerite with some sandstone outcrops in the north-east. Little Betsey Island (0.75 ha) is a steep sided rock with a platform on the top. Old remains of buildings can be found from when the island was farmed (Brothers et al. 2001).
Key Biodiversity Other birds found on Betsey and Little Betsey Islands are the Kelp Gull (three pairs and 11 individuals recorded by Brothers et al.  but higher numbers have been observed [E. Woehler in litt. 2008]) and White-bellied Sea-Eagle (one breeding pair recorded by Brothers et al. ). Swamp Harriers also nest on the island (E. Woehler in litt. 2008).
Non-bird biodiversity: Other animals found on Betsey Island and Little Betsey Island are Rabbit, White's Skink and the She-oak Skink. Vegetation includes Eucalyptus globulus, Tetragonia implexicoma and the invasive weeds Cape Leeuwin Wattle and African Boxthorn (Brothers et al. 2001).
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Little Penguin Eudyptula minor||resident||1985-1999||15,085 breeding pairs||poor||A4ii||Least Concern|
|Short-tailed Shearwater Ardenna tenuirostris||resident||1985-1999||130,000-170,000 nests||medium||A4ii||Least Concern|
|Black-faced Cormorant Phalacrocorax fuscescens||resident||1999-2003||232 breeding pairs||medium||A4i||Least Concern|
|2008||medium||not assessed||not assessed|
|Medium - based upon reliable but incomplete / partially representative data|
|Biological resource use||fishing & harvesting aquatic resources - unintentional effects: large scale||happening now||some of area/population (10-49%)||no or imperceptible deterioration||low|
|Human intrusions and disturbance||recreational activities||happening now||some of area/population (10-49%)||no or imperceptible deterioration||low|
|Invasive & other problematic species, genes & diseases||invasive non-native/alien species/diseases - named species||happening now||some of area/population (10-49%)||slow but significant deterioration||medium|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Betsey Island||Nature Reserve||181||protected area contained by site||181|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Coastline||Sea cliffs, rocky shores & rocky islets||major|
|Shrubland||Chenopod shrubs, samphire shrubs and forblands||minor|
Land ownership State Government Nature Reserve
|Land-use||Extent (% of site)|
|nature conservation and research||100%|
Protection status Betsey Island Nature Reserve
Access/Land-Owner requests Permission should be sought from DPIW before visiting this Nature Reserve.
Acknowledgements The nomination was prepared by Birds Australia. Rachael Alderman and Rosemary Gales of DPIW and Eric Woehler kindly commented on the nomination.
References Brothers, N., Pemberton, D., Pryor, H. & Halley, V. (2001) Tasmania's Offshore Islands: seabirds and other natural features. Tasmanian Museum and Art gallery: Hobart.
Skira, I.J., Brothers, N.P. & Pemberton, D. (1996) Distribution, abundance and conservation status of Short-tailed Shearwaters Puffinus tenuirostris in Tasmania, Australia. Marine Ornithology 24: 1-14.
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Recommended citation BirdLife International (2015) Important Bird Areas factsheet: Betsey Island. Downloaded from http://www.birdlife.org on 08/07/2015
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