Myna

In November 2007 and November 2008, we conducted a bird and mammal survey on Wallis and Futuna. We found two non-native bird species on Wallis: the Common Myna (Acridotheres tristis) and the Chestnut-breasted Munia (Lonchura castaneothorax), and one on Futuna: the Jungle Myna (Acridotheres fuscus). We also recorded Black Rats (Rattus rattus) on Futuna, a recent introduction to this island. The introduction of 3 bird species and Black Rats in the last decade denotes a lack of preventive measures and demonstrates that the issue of invasive species has not received sufficient priority.

Common mynas have been introduced (often as biocontrol for insects) or colonised many islands in the Pacific. They are one cause of decline in some native bird species such as endemic kingfishers, and are a pest when they damage fruit and compete for food to put out for domestic animals.

The Jungle myna (Acridotheres fuscus) was first recorded in Upolu in 1965, followed by the Common myna (Acridotheres tristis) in 1988 (Watling, 2001). It is believed they were introduced to control livestock ticks and unexpectedly became an invasive species; over the past two decades their populations have increased dramatically. They are now found throughout Samoa with high density populations concentrated in the Apia town area and neighboring villages

Observations made during visits to Rarotonga in July and August 1976 are detailed, with particular reference to land birds and petrels, a group not previously recorded. The outstanding feature of the land bird ecology is the apparent total restriction of the native species except Long-tailed cuckoo to the central primitive forests and adjacent second growth. The native land bird fauna consists of only five species: Long-tailed Cuckoo, Pacific Pigeon, Rarotonga Fruit Dove, Rarotonga Flycatcher and the Rarotonga Starling, of which the last three are endemic.

The Indian, or common, myna, Acridotheres tristis (Sturnidae: Passeriformes: Aves) was introduced throughout New Zealand in the 1870?s by locals and Acclimatisation Societies (Bull et al., 1985). Birds subsequently established in most of the North Island, with high densities present in the urban and suburban areas. Common mynas continue to flourish in the northern and central North Island, and are usually more abundant than most native birds in gardens and parks (LCR, 2008)