Javan Myna

The Javan myna, also known as the white-vented myna, is a species of myna in the starling family Sturnidae. It is native to Java and Bali in Indonesia, where its population has declined significantly due to excessive trapping for the cage-bird trade. Paradoxically, while the species is considered vulnerable in its native range, it has become a highly successful invasive species in several other countries, most notably Singapore, where it is now the most abundant bird species. The species has been introduced to southeastern Thailand, southern Malaysia, Sumatra, Taiwan, Japan, Nepal, and Puerto Rico.

Source: Wikipedia