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The Javan myna (Acridotheres javanicus), also known as the white-vented myna, is a species of myna. It is a member of the starling family. It is native to Bali and Java. It has been introduced to other Asian countries, and as far away as Puerto Rico.

TaxonomyEdit

The Javan myna is sometimes included in the great myna (Acridotheres grandis) or the jungle myna (A. fuscus). The International Ornithologists' Union recommends not using the name "white-vented myna" to avoid confusion with the pale-bellied myna A. cinereus.<ref name=Tasirin>Template:Cite journal</ref>

DescriptionEdit

File:Javan myna in flight - Flickr - Lip Kee.jpg
Javan myna in flight, showing the distinctive white wing and tail bars

The Javan myna is mainly black. The wings are brownish-black, and the primaries have white bases, displayed in flight as a striking white wing bar, along with a white tail bar. The undertail-coverts are white. There is a short crest on the forehead. Its beak, legs and feet are yellow. The eyes are lemon-yellow. The immature is browner. Its length is Template:Convert.<ref name="Craig">Template:Cite book</ref> Its weight is about Template:Convert.<ref name=HBWAlive />

File:Acridotheres javanicus - Javan Mynah.webm
Javan mynas feeding on the streets of Singapore. Video clip

HabitatEdit

The Javan myna is native to Bali and Java, and has been introduced to southeastern Thailand, southern Malaysia, Singapore, Sumatra, the Lesser Sundas, Taiwan, Puerto Rico, Japan and Nepal.<ref name=HBWAlive>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It is found in cities and cultivated areas.<ref name=Craig />

BehaviourEdit

Javan mynas are bold and not very afraid of humans.<ref name="Craig" /> Javan mynas are kept in cages in Malaysia and Indonesia.<ref name="Craig" />

Javan mynas are found in pairs and associate in larger groups. Its voice is similar to that of the common myna. It builds its nest in holes.

The birds scavenge in groups, minimum two but usually three or more, with all except one feeding and one usually at a vantage point keeping a look out. 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.Template:Citation needed

DietEdit

The Javan myna is omnivorous and eats seeds, fruit, nectar, insects and human waste.<ref name="Craig" />

JuvenilesEdit

The juvenile, or fledgling, period of a Javan myna lasts about 25 days.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

EggsEdit

The eggs of a Javan myna are blue in colour and takes 13-14 days to hatch.<ref name=":0">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> After the chick hatches, the adult will remove the eggshells immediately and dispose them some distance away to avoid attracting predators<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

ReferencesEdit

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