Gnatcatcher

（重定向自Polioptilidae）

The 15 to 20 species of small passerine birds in the gnatcatcher family occur in North and South America (except for the far south and the high Andean regions). Most species of this mainly tropical and subtropical group are resident, but the blue-grey gnatcatcher of the United States and southern Canada migrates south in winter. They are close relatives of the wrens.

单词	Polioptilidae
释义	Polioptilidae 英语百科 Gnatcatcher （重定向自Polioptilidae） The 15 to 20 species of small passerine birds in the gnatcatcher family occur in North and South America (except for the far south and the high Andean regions). Most species of this mainly tropical and subtropical group are resident, but the blue-grey gnatcatcher of the United States and southern Canada migrates south in winter. They are close relatives of the wrens.
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