Mooringer (Mainland Frisian, Mooringa), Ferring (Fohr-Amrum), Sölreng (Sylt), Helgoland. Ferring dialect is actively used. Not intelligible to East Frisian Low Saxon [frs] of Germany or Frisian [fry] of the Netherlands except by a few educated bilingual speakers of Frisian. Lexical similarity: 70% between the Mooringer dialect and Standard German [deu], 55% with English [eng], 66% with East Frisian Old Saxon [frs], the Föhr dialect has 69% with Standard German, 62% with English, 68% with Frisian [fry], 73% with East Frisian Low Saxon, 86% with the Mooringer dialect, 91% with the Amrum dialect; the Sylt dialect has 64% with Standard German, 61% with English, 79% with the Mooringer dialect, 85% with the Föhr dialect.