Walton Common is a 25.5 hectare

Hectare

The hectare is a metric unit of area defined as 10,000 square metres , and primarily used in the measurement of land. In 1795, when the metric system was introduced, the are was defined as being 100 square metres and the hectare was thus 100 ares or 1/100 km2...

 biological Site of Special Scientific Interest (SSSI) near the village of Walton in Gordano

Walton in Gordano

Walton in Gordano is a village and civil parish in North Somerset, England. It is situated in a small valley at the side of the south-western end of the Gordano Valley, about a mile from Clevedon...

, North Somerset

North Somerset

North Somerset is a unitary authority in England. Its area covers part of the ceremonial county of Somerset but it is administered independently of the non-metropolitan county. Its administrative headquarters is in the town hall in Weston-super-Mare....

, notified in 1991.

The Common which is both a Scheduled Ancient Monument

Scheduled Ancient Monument

In the United Kingdom, a scheduled monument is a 'nationally important' archaeological site or historic building, given protection against unauthorized change. The various pieces of legislation used for legally protecting heritage assets from damage and destruction are grouped under the term...

 and an SSSI, is covered by a Countryside Stewardship agreement with the Countryside Agency. The Common remains in private ownership and the Avon Wildlife Trust

Avon Wildlife Trust

The Avon Wildlife Trust aims to protect and promote wildlife in the area of the former county of Avon — now Bath and North East Somerset, Bristol, North Somerset and South Gloucestershire, in England...

 has a 10-year lease to manage it as a nature reserve

Nature reserve

A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...

.

Wildflowers found on the common include thyme

Thyme

Thyme is a culinary and medicinal herb of the genus Thymus.-History:Ancient Egyptians used thyme for embalming. The ancient Greeks used it in their baths and burnt it as incense in their temples, believing it was a source of courage...

, marjoram

Marjoram

Marjoram is a somewhat cold-sensitive perennial herb or undershrub with sweet pine and citrus flavours...

, rock-rose, St John's wort

St John's wort

St John's wort is the plant species Hypericum perforatum, and is also known as Tipton's Weed, Chase-devil, or Klamath weed....

, Autumn Gentian

Gentian

Gentiana is a genus of flowering plants belonging to the Gentian family , tribe Gentianeae and monophyletic subtribe Gentianinae. With about 400 species, it is considered a large genus.-Habitat:...

 and Violets. Butterflies are particularly notable including Common Blue

Common Blue

The Common Blue is a small butterfly in the family Lycaenidae, widespread over much of the Palaearctic. Recently, Polyommatus icarus was discovered in Mirabel, Quebec, Canada by Ara Sarafian, an amateur entomologist who observed the butterfly from 2005 to 2008...

, Brown Argus

Brown Argus

The Brown Argus is a butterfly in the family Lycaenidae.-Appearance, behaviour and distribution:Although one of the "Blues" both sexes are brown on the uppersides with a band of orange spots at the border of each wing...

, Grizzled

Grizzled Skipper

The Grizzled Skipper Pyrgus malvae is a butterfly of the Hesperiidae family.-Appearance, behaviour and distribution:With its characteristic chequered black and white pattern this butterfly is quite distinctive although old, faded individuals can be mistaken for the Dingy Skipper or the Sideridis...

 and Dingy Skipper

Dingy Skipper

The Dingy Skipper, Erynnis tages, is a butterfly of the Hesperiidae family. It ranges from Europe across Asia Minor and Central Asia to the Amur region.Erynnis tages favours open grassy habitats up to 2,000 metres above sea level...

, Green

Green Hairstreak

The Green Hairstreak, Callophrys rubi, is a butterfly in the family Lycaenidae.Callophrys rubi is found in Europe, North Africa, Russia, Asia Minor, Siberia, Amurland , Baluchistan and Chitral....

 and Purple Hairstreak

Purple Hairstreak

The Purple Hairstreak Neozephyrus quercus is a butterfly in the family Lycaenidae distributed throughout much of Europe. North Africa, Asia Minor, Caucasus and Transcaucasia....

, and Dark Green Fritillary

Dark Green Fritillary

The Dark Green Fritillary is a butterfly of the Nymphalidae family.The insect has a wide range in the Palearctic ecozone - Europe, Morocco, Iran , Siberia, Central Asia, China, Korea and Japan.-Subspecies:...

. Other insects such as grasshopper

Grasshopper

The grasshopper is an insect of the suborder Caelifera in the order Orthoptera. To distinguish it from bush crickets or katydids, it is sometimes referred to as the short-horned grasshopper...

s, Glow-worms and moths

Moths

Moths may refer to:* Gustav Moths , German rower* The Moths!, an English indie rock band* MOTHS, members of the Memorable Order of Tin Hats...

 are abundant. Birds identified at the site include; Blackcap

Blackcap

The Blackcap is a common and widespread sylviid warbler which breeds throughout temperate Europe, western Asia and northwestern Africa, and winters from northwestern Europe south to tropical Africa...

, Whitethroat

Whitethroat

The Common Whitethroat, Sylvia communis, is a common and widespread typical warbler which breeds throughout Europe and across much of temperate western Asia. This small passerine bird is strongly migratory, and winters in tropical Africa, Arabia and Pakistan.This is one of several Sylvia species...

, Buzzard

Common Buzzard

The Common Buzzard is a medium to large bird of prey, whose range covers most of Europe and extends into Asia. It is usually resident all year, except in the coldest parts of its range, and in the case of one subspecies.-Description:...

, Kestrel

Common Kestrel

The Common Kestrel is a bird of prey species belonging to the kestrel group of the falcon family Falconidae. It is also known as the European Kestrel, Eurasian Kestrel, or Old World Kestrel. In Britain, where no other brown falcon occurs, it is generally just called "the kestrel".This species...

 and Sparrowhawk.