Are registered in the Arrábida Natural Park a considerable number of species, a total of 213 vertebrate: 8 amphibians, 16 reptiles, 154 birds and 35 mammals.
Among the mammals include the fox (Vulpes vulpes), the weasel (Mustela nivalis), the toirão (Mustela putorius), the genet (Genetta genetta), wild rabbit (Oryctolagus cuniculus), badger (Meles meles) and the likely occurrence of wildcat (Felis silvestris), the weasel and the weasel (Martes foina). The caves, especially the cliffs have associated a very particular fauna of bats: Bat-of-Teddy (Miniopterus schreibersii) bat of horseshoe-Mediterranean (Rhinolophus euryale) bat of horseshoe-large (Rhinolophus ferrumequinum) and bat -of horseshoe Moorish (Rhinolophus meherlyi).
Among the birds stand out Bonelli’s eagle (Hieraaetus fasciatus) – with the only couple nest in the Portuguese coast, the peregrine falcon (Falco peregrinus), the eagle owl (Bubo bubo), the screech owl (Tyto alba), the swift-real (Apus melba), the blackbird, blue (Monticola solitarius) and the black redstart-(Phoenicurus ochrurus), the nightingale (Luscinia mergarhynchos), the robin and the wren (troglodytes troglodytes), Hawfinch (Coccothraustes coccothraustes), the hoopoe (Upupa epops), the common-partridge, lark-Tit (Galerida cristata), the nighthawk to-neck-red (Caprimulgus ruficollis) and the kingfisher (Alcedo atthis), the woodpecker spotted-large (Dendrocopus major), the tits (Parus spp.), the common-creeper (Certhia brachydactila), and the common Cuckoo (Cuculus canorus).
Amphibians and reptiles, the lizard, the snake-legged pentadáctila (Chalcides bedriagai), the snake-of-ladder (Elaphe scalaris), the snake-Ratter (Malpolon monspessulanus), the Horned Viper and the snake-in -ferradura (Coluber hippocrepis). Water resources provide shelter to the turtle (Mauremys leprous) and her water snakes (Natrix spp.).
Among the thousands of species of invertebrates is included one of the few Portuguese animal species classified as Endangered Extinction of Critical by the International Union for Conservation of Nature – the cave spider Frade – Anapistula ataecina.