Javan Myna

The Javan myna, also known as the white-vented myna, is a member of the starling family native to Bali and Java and introduced to other Asian countries and as far away as Puerto Rico. It is mainly black, with brownish-black wings whose primaries have white bases, giving a striking white wing bar in flight, along with a white tail bar and white undertail coverts. There is a short crest on the forehead (Wikipedia, general species account). (Wikipedia, general species account).

Its recorded distribution includes cities and cultivated areas. Javan mynas are found in pairs and associate in larger groups. If the bird that is keeping watch sees anything that might pose a threat, it alarms the group members with a high pitch tweet and they all flee the area swiftly. They mostly fight over territorial, mating or food rights. Juveniles make incessant, high-pitched and scratchy, calls (onomatopoeically expressed as "kaeeu kaeeu kaeeu") to plead for food from their parents accompanied by its "half-flaps" and "wing quivering". (Wikipedia, general species account).