The Diamond Dove is a bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 resident in 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...

.

The dove

Dove

Pigeons and doves constitute the bird family Columbidae within the order Columbiformes, which include some 300 species of near passerines. In general terms "dove" and "pigeon" are used somewhat interchangeably...

 predominantly exists in areas near water but which are lightly arid

Arid

A region is said to be arid when it is characterized by a severe lack of available water, to the extent of hindering or even preventing the growth and development of plant and animal life...

 or semi-arid

Semi-arid

A semi-arid climate or steppe climate describes climatic regions that receive precipitation below potential evapotranspiration, but not extremely...

 in nature, being Central, West and Northern Australia. They are one of Australia's smallest pigeons along with the Peaceful Dove

Peaceful Dove

The Peaceful Dove is a pigeon native to Australia and New Guinea. It is closely related to the Zebra Dove of south-east Asia and the Barred Dove of eastern Indonesia...

. They have been spotted occasionally in Southern Australia in parks and gardens when the centre of Australia is very dry.
They are small pigeons with a length of 19 to 21 centimetres.