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Location Australia, Northern Territory
Central coordinates 134o 54.07' East  12o 3.73' South
IBA criteria A4i
Area 9,375 ha
Altitude 0 - 10m
Year of IBA assessment 2008

BirdLife Australia



Summary These mudflats support more than 1% of the world population of Grey-tailed Tattler and Pied Oystercatcher, and large numbers of other shorebirds.

Site description This IBA includes the small inshore islands of Darbada, Crocodile, Yabooma, Gananggarngur and Mooroongga, and the coastal fringe of Milingimbi Island. The shorebirds are likely to use other adjacent mudflats including the remainder of Castlereagh Bay but there is insufficient data to map feeding areas off these islands. The adjacent floodplains of the Glyde River have large numbers of waterbirds but the limited data do not qualify this area for IBA status. The IBA is mostly intertidal mudflats with fringing mangroves and samphire (chenopod) shrubland, with some sandy beaches and dunes on some exposed shores.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Pied Oystercatcher Haematopus longirostris resident  1990-2002  155-320 individuals  medium  A4i  Least Concern 
Grey-tailed Tattler Tringa brevipes non-breeding  1990-2002  800 individuals  medium  A4i  Near Threatened 
Far Eastern Curlew Numenius madagascariensis non-breeding  1990-2002  700 individuals  poor  A4i  Vulnerable 
Great Knot Calidris tenuirostris non-breeding  1990-2002  4,400 individuals  poor  A4i  Vulnerable 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Coastline Intertidal mud, sand & salt flats; Mangrove wetlands; Salt marshes  major

Land ownership xxx

Land use

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

Access/Land-Owner requests This IBA is on Traditionally Owned land.

References Chatto, R. (2000a) Waterbird breeding colonies in the Top End of the Northern Territory. Technical Report 69, Parks and Wildlife Commission of the Northern Territory, Palmerston.

Chatto, R. (2000b) A management strategy and protected areas system for coastal wildlife. (Documentation of selected sites in the Northern Territory of Australia which would qualify for nomination under the East Asian - Australasian Shorebird Site Network). Unpublished report, Parks and Wildlife Commission of the Northern Territory, Palmerston.

Chatto, R. (2003) The distribution and status of shorebirds around the coast and coastal wetlands of the Northern Territory. Technical Report 73, Parks and Wildlife Commission of the Northern Territory, Palmerston.

Chatto, R. (2006) The distribution and status of waterbirds around the coast and coastal wetlands of the Northern Territory. Technical Report 76, 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: Milingimbi Islands. Downloaded from http://www.birdlife.org on 20/08/2014

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