The Foster Islands are two small islands, connected at low tide, with a combined area of 48 ha

Hectare

The hectare is a metric unit of area defined as 10,000 square metres , and primarily used in the measurement of land. In 1795, when the metric system was introduced, the are was defined as being 100 square metres and the hectare was thus 100 ares or 1/100 km2...

, in south-eastern Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. They are part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania

Tasmania

Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

. They are a nature reserve

Nature reserve

A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...

.

Fauna

Recorded breeding seabird

Seabird

Seabirds are birds that have adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same environmental problems and feeding niches have resulted in similar adaptations...

 and wader

Wader

Waders, called shorebirds in North America , are members of the order Charadriiformes, excluding the more marine web-footed seabird groups. The latter are the skuas , gulls , terns , skimmers , and auks...

 species are Little Penguin

Little Penguin

The Little Penguin is the smallest species of penguin. The penguin, which usually grows to an average of in height and in length , is found on the coastlines of southern Australia and New Zealand, with possible records from Chile.Apart from Little Penguins, they have several common names...

, Short-tailed Shearwater

Short-tailed Shearwater

The Short-tailed Shearwater or Slender-billed Shearwater , also called Yolla or Moonbird, and commonly known as the muttonbird in Australia, is the most abundant seabird species in Australian waters, and is one of the few Australian native birds in which the chicks are commercially harvested...

, White-faced Storm-Petrel

White-faced Storm-petrel

The White-faced Storm Petrel , also known as White-faced Petrel is a small seabird of the storm-petrel family. It is the only member of the monotypic genus Pelagodroma....

, Pacific Gull

Pacific Gull

The Pacific Gull is a very large gull, native to the coasts of Australia. It is moderately common between Carnarvon in the west, and Sydney in the east, although it has become scarce in some parts of the south-east, as a result of competition from the Kelp Gull, which has "self-introduced" since...

, Sooty Oystercatcher

Sooty Oystercatcher

The Sooty Oystercatcher, Haematopus fuliginosus, is a species of oystercatcher. It is a wading bird native to Australia and commonly found on its coastline. It prefers rocky coastlines, but will occasionally live in estuaries....

 and Australian Pelican

Australian Pelican

The Australian Pelican is a large water bird, widespread on the inland and coastal waters of Australia and New Guinea, also in Fiji, parts of Indonesia and as a vagrant to New Zealand.-Taxonomy:...

. Cape Barren Geese

Cape Barren Goose

The Cape Barren Goose is a large goose resident in southern Australia. The species is named for Cape Barren Island, where specimens were first sighted by European explorers.-Taxonomy:...

 also breed on the island. The Metallic Skink

Metallic Skink

The Metallic Cool-skink or Metallic Skink is a species of skink in the Scincidae family. It is endemic to Australia, found in southern Victoria, as well as in Tasmania where it is the most widespread and common lizard, occurring on many offshore islands in Bass Strait as well as the mainland. It...

 is present.

Other islands in the Waterhouse Group with breeding seabirds include:

• Ninth Island
  Ninth Island
  Ninth Island is an island, with an area of 32 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania. It is partly privately owned and has been badly affected in the past by grazing, frequent fires and, in July 1995, by the...
  
  
• Tenth Island
  Tenth Island
  Tenth Island is a small island nature reserve, sometimes called "Barrenjoey", with an area of 900 m2, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania...
  
  
• Waterhouse Island
• Little Waterhouse Island
  Little Waterhouse Island
  Little Waterhouse Island is a small island, with an area of 2.5 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania. Most of the island is bare rock...
  
  
• Maclean Island
  Maclean Island
  Maclean Island is a small island, with an area of 1.11 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania.-Fauna:...
  
  
• Baynes Island
  Baynes Island
  Baynes Island is a group of three islets, connected at low tide, with a combined area of 1.62 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania.-Fauna:...
  
  
• Cygnet Island
• Swan Island
  Swan Island (Tasmania)
  Swan Island is a granite island, with an area of 239 ha , in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania. Part of the island is privately owned and it contains an automated lighthouse, several houses and an airstrip. It...
  
  
• Little Swan Island
  Little Swan Island
  Little Swan Island is an island, with an area of 12.64 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania.-Fauna:...
  
  
• Bird Rock
  Bird Rock
  Bird Rock is a small granite island, with an area of about 1 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania.-Fauna:...
  
  
• George Rocks
  George Rocks
  George Rocks comprises three adjacent granite islets with their associated reefs, with a combined area of about 7 ha, in south-eastern Australia...
  
  
• St Helens Island
  St Helens Island
  St Helens Island is a granite island, with an area of 51 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania. The island is a conservation area, though it has been burnt in the past and is still subject to severe rabbit...
  
  
• Paddys Island
  Paddys Island
  Paddys Island is a flat granite island, with an area of 4.6 ha, in south-eastern Australia. It is part of the Waterhouse Island Group, lying close to the north-eastern coast of Tasmania...