Cliffs have inaccessible vertical faces which are safe for birds to make their nests, seabirds such as herring gulls and shags, also ravens, peregrine falcons and kestrels, and rock doves. Plants include rock and golden samphire, scurvy grass and thrift which grow in crevices. Some of this grassland has never been ploughed so along the cliff top there is wild thyme in grass kept short by the wind and rabbits, also ant hills which provide food for choughs and nectar for blue butterflies. Thyme grows on the ant hills and attracts the blue butterflies, which lay eggs there. Skylarks nest in the grassland between and corn buntings nest nearby in cultivated fields.
Cliff food chains: