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The birds of Thailand represent nearly one thousand species, of which approximately 45 are rare or accidental. At least seven bird species previously found in Thailand have since been extirpated, and approximately fifty of the country's species are globally threatened. In 1991, it was estimated that 159 resident and 23 migratory species were endangered or vulnerable due to forest clearance, illegal logging, hunting and habitat degradation, especially in the lowlands. The species most affected are large water birds whose wetland habitat has been largely lost to agriculture, and forest species, as deforestation for agriculture and logging have removed and degraded portions of the woodlands.〔Lekagul, Boonsong; Round, Philip (1991) ''A Guide to the Birds of Thailand'' 7–19 ISBN 974-85673-6-2〕 The birds of Thailand are mainly typical of the Indomalaya ecozone, with affinities to the Indian subcontinent to the west, and, particularly in Southern Thailand, with the Sundaic fauna to the southeast. The northern mountains are outliers of the Tibetan Plateau, with many species of montane birds, and in winter the avifauna is augmented by migrants from the eastern Palearctic and Himalayas. The Java sparrow has been introduced by humans, and the cattle egret has naturally colonised.〔 Thailand's habitats are contiguous with those of neighbouring countries, so it has few endemic birds. The white-eyed river martin, known only from its single wintering site in Thailand, is probably extinct. __NOTOC__ ==List== The sequence of bird families and species follows ''The Clements Checklist of Birds of the World'', 6th edition (updated 2013); unless otherwise indicated, the species included are as in Robson (2004), and the status in Thailand is from Lekagul and Round (1991). Species with no indicated status are resident or partially resident non-rarities.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of birds of Thailand」の詳細全文を読む スポンサード リンク
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