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Locustellidae is a newly recognized family of small insectivorous songbirds ("warblers"), formerly placed in the Old World warbler "wastebin" family. It contains the grass warblers, grassbirds, and the ''Bradypterus'' "bush warblers". These birds occur mainly in Eurasia, Africa, and the Australian region. The family name is sometimes given as Megaluridae, but Locustellidae has priority.〔Alström ''et al.'' (2006)〕 The species are smallish birds with tails that are usually long and pointed; the scientific name of the genus ''Megalurus'' in fact means "the large-tailed one" in plain English. They are less wren-like than the typical shrub-warblers (''Cettia'') but like these drab brownish or buffy all over. They tend to be larger and slimmer than ''Cettia'' though, and many have bold dark streaks on wings and/or underside. Most live in scrubland and frequently hunt food by clambering through thick tangled growth or pursuing it on the ground; they are perhaps the most terrestrial of the "warblers". Very unusual for Passeriformes, beginning evolution towards flightlessness is seen in some taxa.〔del Hoyo ''et al.'' (2006)〕 Among the "warbler and babbler" superfamily Sylvioidea, the Locustellidae are closest to the Malagasy warblers, another newly recognized (and hitherto unnamed) family; the black-capped donacobius (''Donacobius atricapillus'') is an American relative derived from the same ancestral stock and not a wren as was long believed.〔 ==Genera== * ''Bradypterus'' – Megalurid bush warblers * ''Elaphrornis'' – Sri Lanka bush warbler * ''Locustella'' – grass warblers * ''Megalurus'' – typical grassbirds * ''Schoenicola'' – wide-tailed grassbirds (2 species; tentatively placed here) * ''Buettikoferella'' – buff-banded thicketbird * ''Chaetornis'' – bristled grassbird * ''Robsonius'' – ground warblers * ''Amphilais'' – grey emutail * ''Megalurulus'' – thicketbirds (5 species) * ''Trichocichla'' – long-legged thicketbird 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「Locustellidae」の詳細全文を読む スポンサード リンク
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