ABOUT
The Java sparrow (Lonchura oryzivora), also known as Java finch, Java rice sparrow or Java rice bird, is a small passerine bird.[2]This estrildid finch is a resident breeding bird in Java, Bali and Bawean in Indonesia. It is a popular cage bird, and has been introduced in a large number of other countries. Some taxonomists place this and the Timor sparrow in their own genus Padda.
Descriptionedit
The Java sparrow is about 15–17 cm in length from the beak to its tip of tail feathers. The adult is unmistakable, with its grey upperparts and breast, pink belly, white-cheeked black head, red eye-ring, pink feet and thick red bill.
Both sexes are similar. Immature birds have brown upperparts and pale brown underparts, and a plain head. Very young birds have a black beak with a pink base.
The call is a chip, and the song is a rapid series of call notes chipchipchipchipchipchip.
Molecular phylogeny indicates that this species may have originated in India and dispersed to Africa and Pacific Ocean habitats from there.3
Habitatedit
The Java sparrow is a very gregarious bird which feeds mainly on grain and other seeds. It frequents open grassland and cultivation, and was formerly a pest in rice fields, hence its scientific name. The nest is constructed in a tree or building, and up to eight eggs are laid.
Threatsedit
The Java sparrow is considered to be a serious agricultural pest of rice. Due to ongoing habitat loss and hunting in some areas, the Java sparrow is now uncommon in its native range. It is evaluated as vulnerable on the IUCN Red List of Threatened Species and is listed on Appendix II of CITES.
Introductionsedit
Adult in Hawaii
A juvenile in Hawaii with a black/dark-grey beak
The Java sparrow was introduced in the Indian subcontinent,4 but it failed to become a successful resident on the Indian mainland.5 In the United States there are breeding populations on several of the Hawaiian Islands, especially Oahu.
In the Caribbean, the Java sparrow was introduced to Puerto Rico where it is fairly common near San Juan. It has also been sighted inJamaica, but is not known to occur on any of the other islands.6 It was also introduced to Christmas Island, off the coast of Western Australia.
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