Natterjack toads have been re-introduced to the area. The Duddon Estuary is significant for natterjack toads. Formby is also notable for the presence of natterjack toads. Populations of the natterjack extend through 17 European countries. They share this habitat with natterjack toads. It is one of five UK locations where the natterjack toad can be found. "Natterjack", (1996, Faber & Faber) and "Lobster Moth" (1999, Fourth Estate). It is also home to the UK's most northerly population of the natterjack toad. The estuary also provides for breeding birds, grey seals and natterjack toads. Wide-Eye is an animated children's television series set in fictional Natterjack Forest. Resident species include the natterjack toad. Also protected are natterjack toads, edible crabs and waders. Natterjack toads breed in shallow pools within the site. The reserve's sand dunes support a population of natterjack toads ("Bufo calamita"). Local fauna include the natterjack toad and the sand lizard.