Fauna of Wales
Fauna of Wales includes marine and land animals, birds and reptiles that are resident, visitors or have been introduced to Wales.
Marine and river animals
Around Cardigan Bay and the Pembrokeshire coast, minke and pilot whales are common in the summer while fin and killer whales are rare. Bottlenose dolphins are common and Risso’s dolphin and Atlantic white-sided dolphin are rare. Whales and grey seals can be seen. Herring, mackerel and hake are the more common of the country's marine fish, but basking sharks and sunfish can also be seen.River fish of note include char, eel, salmon, shad, sparling and Arctic char, whilst the gwyniad is unique to Wales, found in two locations, Llyn Tegid, with a conservation population in another lake in the same area.
Wales is known for its shellfish, including cockles, limpet, mussels and periwinkles.
Land mammals
The red deer, one of five native deer species, is the biggest non-marine mammal in Wales. Fallow deer are found in rural and semi-urban areas, and roe deer are found in central and northern Wales; muntjac and sika deer can also be found. Other mammals include badgers, foxes, hares, hedgehogs, otters, rabbits, stoats, weasels and red squirrels; pine martens are very rarely seen, but European polecat can be found in both urban and country environments. Wales has 13 species of bat.Feral goats can be found in Snowdonia. In March 2021, Natural Resources Wales granted a licence to release up to six beavers in the Dyfi Valley, the first official beaver release in Wales.
Birds
About 430 species of birds have been found in Wales. Red kites and ospreys are some "signature species" of Wales. Dippers, choughs, puffins, guillemots, razorbills, short-eared owls, Manx shearwaters, whimbrel and plovers are also common. Montagu's harrier, a rare species in Britain, has several nesting places in Wales. Red grouse, once a common species, has reduced in population dramatically due to human hunting; they are found in the extreme north of Wales.Reptiles
, common lizards, notably around Oxwich Bay and grass snakes have been recorded. Some sand lizards bred by Herpetological Conservation Trust volunteers and Chester and Jersey Zoos have been released into the wild.There are two populations of formerly extinct Aesculapian snake in Wales which derive from escapes. The older recorded of these is in the grounds and vicinity of the Welsh [Mountain Zoo] near Conwy in North Wales. This population has persisted and reproduced since at least the early 1970s, and in 2022 the population was estimated at 70 adults. In 2020, a population was confirmed as being present in Bridgend, Wales. This population has persisted for approximately 20 years.