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Location Australia, Northern Territory
Central coordinates 136o 55.90' East  15o 29.97' South
IBA criteria A4i
Area 9 ha
Altitude 0 - 10m
Year of IBA assessment 2008

BirdLife Australia



Summary The IBA of three adjacent islands supports more than 1% of the world population of Crested and Roseate Terns. Further surveys may indicate that other nearby islands may also be important.

Site description The IBA includes three adjacent islands, Pearce islet, Urquhart islet and Hervey Rocks, all north-east of North Island in the Edward Pellew Group of the western Gulf of Carpentaria. Pearce is a large, low vegetated islet. Urquhart is a reasonably large, low, circular, vegetated, rock and coral rubble island. Hervey Rocks is a small, low, partially vegetated rock island with a small sand spit (Chatto 2001 island refs S070, S071 and S072). The IBA may be extended to other poorly-known nearby islands if they are surveyed more thoroughly and shown to support large numbers of nesting terns.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater Crested Tern Thalasseus bergii breeding  1990-2001  50,000 unknown  medium  A4i  Least Concern 
Roseate Tern Sterna dougallii breeding  1990-2001  17,500 individuals  medium  A4i  Least Concern 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Coastline Sea cliffs, rocky shores & rocky islets  100%

Land ownership Wurralibi ALT

Land use

Land-use Extent (% of site)
other 100%
Notes: Traditional Use

Other biodiversity Large numbers of marine turtles nest on the islands (Chatto 2001).

Access/Land-Owner requests Traditionally-owned land.

References Chatto, R. (2001) The distribution and status of colonial breeding seabirds in the NT. Technical Report 70. Parks and Wildlife Commission of the Northern Territory, Palmerston. Harrison, L., McGuire, L., Ward, S. Fisher, A., Pavey, C., Fegan, M. and Lynch, B. (2009) An inventory of sites of international and national significance for biodiversity values in the Northern Territory. Department of Natural Resources, Environment, the Arts & Sport, Darwin, NT. Ward, S. and Harrison, L. (2009) Recognising sites of conservation significance for biodiversity values in the Northern Territory. Department of Natural Resources, Environment, the Arts & Sport, Darwin, NT.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Pearce, Urquhart and Hervey Islands (Sir Edward Pellew Group). Downloaded from http://www.birdlife.org on 23/08/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife