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The green thorntail (''Discosura conversii'') is a small hummingbird that is a resident breeder from Costa Rica to western Ecuador. It occurs at middle elevations from 700–1400 m but may descend lower early in the wet season. In Costa Rica and Panama it is confined to the Caribbean slopes. This is a forest canopy species. The nest is undescribed, but a published image shows a female constructing a nest on a thin branch, so it is presumably similar to other cup nests built by species such as the green-breasted mango. All hummingbirds lay two white eggs incubated by the female alone. Green thorntail has mainly green upperparts, a white rump band and a blackish lower rump and tail. It weighs just 3 g. The 10 cm long male has the long wire-like tail that gives this species its name and green underparts. The 7.5 cm long female lacks the long tail and has blackish underparts with a green breast band. She has conspicuous white moustaches The green thorntail is usually silent, but may give a quiet ''chip''. These birds visit small flowers including those of epiphytes and shrubs, and also take tiny flies and wasps. Breeding males perch on open branches and may give a dive display. ==Footnotes== *(【引用サイトリンク】 url= http://www.mindobirds.com.ec/gallery3.htm Female building nest ) 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「Green thorntail」の詳細全文を読む スポンサード リンク
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