Nagshead

Site of Special Scientific Interest · 51.7796, -2.5733

Condition (Natural England)

Unfavourable No Change (2)
UnitFeatureConditionArea (ha)Assessed
SO605091 Unfavourable No Change 75.2 2021-11-10
SO611093 Unfavourable No Change 55.65 2021-12-21

Habitats

Bracken scrub

Geology & landscape

Rock Type: Limestone, Sandstone

Birds & fish recorded

Birds

SpeciesSeason
pied flycatcher Breeding
redstart Breeding
wood warbler Breeding

Description

Area, 120.12 ha. 316.6 ac. Description The extensive woodland of Forest of Dean has been managed for timber production for many centuries, with planting and careful management maintaining a mosaic of woodland types. The central region lies on the Coal Measures and supports oak woodland with a fairly restricted calcifuge ground flora. Surrounding this acid area are the limestone and Old Red Sandstone rocks which give rise to more fertile soils with a variety of woodland types over a richer ground flora. This is one of three sites in the Forest of Dean representing the national nature conservation importance of this extensive woodland area. Nagshead provides an excellent example of the broad leaved woodland habitat typical of the Coal Measures and the site is of major ornithological importance. Although this is a site of primary woodland the present trees have nearly all been planted. The oldest part of the site was planted in 1814 and is dominated by both pedunculate oak Quercus robur and sessile oak Q. petraea. A later planting of oak occurs in the eastern part of the site. Vegetation of the understorey and field layer varies according to whether or not the woodland is grazed by sheep. In the ungrazed section a dense shrub layer dominated by holly Ilex aquifolium and rowan Sorbus aucuparia has developed while the grazed sectionis much more open in character. The herb layer largely consists of bramble Rubus fruticosus, bracken Pteridium aquilinum and soft grass Holcus mollis with tufted hair grass Deschampsia cespitosa, wood sorrel Oxalis acetosella and blue bell Hyacinthoides non-scripta locally abundant. Patches of semi natural woodland dominated by alder Alnus glutinosa occur along the Cannop Brook and in these damper areas the vegetation includes species such as soft rush Juncus effusus. Some small ponds and streams add to the overall habitat diversity of the site and less common plants present include ivy campanula Wahlenbergia hederacea, heath spotted orchid Dactylorhiza maculata and broad leaved helleborine Epipactis helleborine. The woodland is particularly rich in bird life and supports good populations of breeding pied flycatcher Ficedula hypoleuca, wood warbler Phylloscopus sibilatrix and redstart Phoenicurus phoenicurus as well as abundant great tits Parus major and blue tits P. caeruleus. Hawfinches Coccothraustes coccothraustes nest occasionally. Some thirty years of research into the breeding biology of blue tit, great tit, pied flycatcher and wood warbler has been carried out at Nagshead and nestboxes are provided throughout the RSPB reserve. The open rides are attractive to butterflies and those recorded include white admiral Limenitis camilla, purple hairstreak Favonius quercus, pearl bordered fritillary Clossiana euphrosyne. There is a good range of other woodland invertebrate species, especially in the vicinity of Cannop Brook.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
pearl bordered fritillary Clossiana euphrosyne Not listed in GB list Boloria euphrosyne nymphalidae
hawfinch Coccothraustes coccothraustes EN (Breeding) bird-finch fringillidae
pied flycatcher Ficedula hypoleuca VU (Breeding) bird-robin muscicapidae
redstart Phoenicurus phoenicurus LC (Breeding) bird-robin muscicapidae
blue tit Cyanistes caeruleus LC (Breeding) bird-tit paridae
great tit Parus major LC (Breeding) bird-tit paridae
wood warbler Phylloscopus sibilatrix VU (Breeding) bird-warbler phylloscopidae
purple hairstreak Favonius quercus LC butterfly lycaenidae
white admiral Limenitis camilla VU butterfly nymphalidae
bracken Pteridium aquilinum LC fern dennstaedtiaceae
tufted hair grass Deschampsia cespitosa LC grass poaceae
creeping soft grass Holcus mollis LC grass poaceae
heath spotted orchid Dactylorhiza maculata LC herb orchidaceae
broad-leaved helleborine Epipactis helleborine DD herb orchidaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
wood sorrel Oxalis acetosella LC herb oxalidaceae
bramble Rubus fruticosus LC herb rosaceae
ivy-leaved bellflower Wahlenbergia hederacea LC herb campanulaceae
soft rush Juncus effusus LC rush juncaceae
alder Alnus glutinosa LC tree salicaceae
holly Ilex aquifolium LC tree aquifoliaceae
common oak Quercus robur LC tree fagaceae
rowan Sorbus aucuparia LC tree rosaceae

Plant communities

W25 — Bracken scrub

Pteridium aquilinum-Rubus fruticosus underscrub

Hedera helix, Acer pseudoplatanus, Fagus sylvatica, Quercus robur, Fraxinus excelsior, Sambucus nigra, Ulex europaeus, Crataegus monogyna, Prunus spinosa, Luzula multiflora, Mnium hornum, Brachythecium rutabulum, Kindbergia praelonga, Angelica sylvestris, Conopodium majus, Heracleum sphondylium, Arum maculatum, Cirsium arvense, Lonicera periclymenum, Silene dioica, Stellaria holostea, Mercurialis perennis, Geranium robertianum, Glechoma hederacea, Teucrium scorodonia, Hyacinthoides non-scripta, Chamerion angustifolium, Circaea lutetiana, Digitalis purpurea, Rumex acetosa, Anemone nemorosa, Ficaria verna, Potentilla erecta, Rosa arvensis, Rosa canina, Rubus fruticosus agg., Rubus idaeus, Galium aparine, Galium mollugo sens.lat., Galium saxatile, Urtica dioica, Viola riviniana, Agrostis capillaris, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Festuca rubra, Holcus lanatus, Holcus mollis, Poa trivialis, Pteridium aquilinum, Dryopteris dilatata, Dryopteris filix-mas