Much wildlife is found on the Duddon Estuary, perhaps most notably 20% of the national Natterjack toad population, who are attracted to the shallow breeding pools.
The sand dunes create a unique ecosystem, home to the rare Natterjack toad which is found locally in significant quantities.
In Scotland, where the species is confined to the Solway Firth, there is a reserve at Caerlaverock.
Natterjack toads are specialists in open, sparsely vegetated habitats which may be at an early seral stage.
Toad the Wet Sprocket | Natterjack toad | Mr. Toad | Kihansi Spray Toad | Japanese common toad | Western toad | Toad The Wet Sprocket | Toad's Place | Toad Road | Toad Ramsey | Toad Patrol | The Adventures of Ichabod and Mr. Toad | Southwestern Arroyo Toad—''Bufo californicus'' | Mangshan horned toad | Houston toad | Fear (Toad the Wet Sprocket album) | European fire-bellied toad | Arroyo toad | Arizona toad |