Friday, August 14, 2009

Panthera tigris balica, The Bali Tiger


The Bali tiger (Panthera tigris balica), also called the Balinese tiger, is an extinct subspecies of tiger found solely on the small Indonesian island of Bali. The tiger was one of three sub-species of tiger found in Indonesia along with the Javan tiger (also extinct) and Sumatran tiger (severely endangered)

It was the smallest of the tiger sub-species; the last tiger to be shot was in 1925, and the sub-species was declared extinct on September 27, 1937. Given the small size of the island, and limited forest cover, the original population could never have been large, and it is considered unlikely that any survive today.

The species became extinct due to habitat loss and hunting.

Sunday, August 9, 2009

Leucopsar rothschildi, The Bali Starling

The Bali Starling, Leucopsar rothschildi, also known as Rothschilds Mynah, Bali Myna or Bali Mynah is a medium-sized (up to 25cm long), stocky myna, almost wholly white with a long, drooping crest, and black tips on the wings and tail. The bird has blue bare skin around the eyes, greyish legs and a yellow bill. Both sexes are similar.


Placed in the monotypic genus Leucopsar, it appears to be most closely related to Sturnia and the Brahminy Starling which is currently placed in Sturnus but will probably soon be split therefrom as Sturnus as presently delimited is highly paraphyletic (Jnsson & Fjelds 2006). The specific name commemorates the British ornithologist Lord Rothschild, who described the bird in 1912.

The Bali Starling is distributed and endemic to the island of Bali in Indonesia, where it is the islands only surviving endemic species. This rare bird was discovered in 1910. The other Balis endemic, the Bali Tiger, was declared extinct in 1937. In 1991, the Bali Starling was designated the fauna symbol of Bali; its local name is kedis putih ("white bird").

It is a very conspicuous bird when seen from up close. In its natural habitat however it is far less conspicuous, using tree tops for cover and - unlike other starlings - usually coming only to the ground to drink; this would seem to be an adaptation to the fact that it is instantly noticeable to predators when out in the open.

The Bali Starling is critically endangered, hovering immediately above extinction in the wild for several years now (BirdLife International 2006). The last stronghold of the species is at Bali Barat National Park; about 1,000 individuals are believed to be held in captivity legally. In fact, the Bali Starling is so much in danger that that national park has been set up just for the Bali Starlings survival. The wild population was at an all-time low of just 6 birds in 2001, after the late-1990s wild population of 3-4 dozen was reduced by poachers for the illegal pet trade. There is at least one well-funded armed gang with access to bomb-making equipment and possibly inside information that raided the local breeding and release facilities in the early 2000s. Continuing releases raised the number of wild birds to 24 by March, 2005.

Its decline towards extinction has been caused by the urbanization of the island and by illegal trapping for the caged-bird trade; indeed, the number of captive birds bought on black market is estimated to be twice the number of legally-acquired individuals in the captive breeding program. The Bali Starling is listed in Appendix I of CITES. Trade even in captive-bred specimens is strictly regulated and the species is not generally available legally to private individuals. However, experienced aviculturalists may become affiliated with the captive-breeding program, allowing them to legally keep this species.