Locustellidae

Locustellidae is a recently recognised family of small insectivorous songbirds ("warblers"), formerly placed in the Old World warbler "wastebin" family. It contains the grasshopper 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.

The name derives from the type genus name Locustella, which is from Latin and is a diminutive of locusta, "grasshopper". Like the English name grasshopper warbler, this refers to the insect-like song of many species of Locustella, most notably the common grasshopper warbler Locustella naevia.