Synonyms: Rusty-rumped Grasshopper-Warbler, Arctic Grasshopper Warbler, Asiatic Grasshopper-Warbler, Gray-naped Grasshopper Warbler, Gray-naped Grasshopper-Warbler, Gray-naped Warbler, Grey-naped Grasshopper Warbler, Grey-naped Grasshopper-Warbler, Grey-naped Warbler, Pallas' Grasshopper Warbler, Pallas' Grasshopper-Warbler, Pallas' Warbler, Pallas's Grasshopper Warbler, Pallas's Grasshopper-Warbler, Pallas's Warbler, Siberian Grasshopper-Warbler