Sletill Peatlands

Site of Special Scientific Interest · 58.3839, -3.7943

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Also within

Caithness CountySutherland County 39. East Halladale Flows Wild Land Area

Condition (NatureScot)

Favourable (4) Unfavourable No Change (2)
UnitFeatureConditionArea (ha)Assessed
F1 Breeding bird assemblage Favourable — 2015-07-16
F2 Common scoter (Melanitta nigra), breeding Unfavourable No Change — 2020-06-23
F3 Dunlin (Calidris alpina schinzii), breeding Favourable — 2024-03-11
F4 Golden plover (Pluvialis apricaria), breeding Unfavourable No Change — 2024-03-11
F5 Greenshank (Tringa nebularia), breeding Favourable — 2024-02-05
F6 Blanket bog Favourable — 2005-03-31

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Peatland

Peat habitats store centuries of carbon and depend on a stable, waterlogged water table. Warmer, drier summers dry out peat, making it far more vulnerable to wildfire and to carbon release — a pressure that can undo years of restoration work regardless of how well the site is otherwise managed.

Habitats

Blanket bog

Geology & landscape

Landscape processes: Peatland / Mire

Birds & fish recorded

Birds

SpeciesSeason
black-throated diver Breeding
dunlin Breeding
golden plover Breeding
greenshank Breeding
greylag goose Breeding
hen harrier Breeding
merlin Breeding
red-throated diver Breeding

Description

Sletill Peatlands Sletill Peatlands Site of Special Scientific Interest (SSSI) covers an area of blanket bog midway along the Sutherland/Caithness border, 6km north east of Forsinard. It lies within a vast expanse of blanket bog that extends across Sutherland and Caithness, forming part of one of the largest tracts of blanket bog in the world. The site is nationally important for its blanket bog habitat and assemblage of breeding birds. The populations of common scoter, dunlin, golden plover and greenshank that nest here are each nationally important in their own right. Blanket bog Sletill Peatlands SSSI is an extensive area of blanket bog, encompassing a range of peatlands, lochans, and pool-and-ridge systems. Watershed mire is the most widespread type of blanket bog on this site, found typically between the altitudinal range of 150 and 200 metres. The gently undulating terrain also supports saddle, terrace and valleyside mires. Much of the blanket bog vegetation is dominated by heather Calluna vulgaris, hare’s-tail cottongrass Eriophorum vaginatum, deer sedge Trichophorum cespitosum and bog myrtle Myrica gale. The flatter parts of the site are much wetter and rich in Sphagnum mosses, including the hummock forming species Sphagnum magellanicum, Sphagnum fuscum and the nationally scarce S. austinii. Bearberry Arctostaphylos uva-ursi and the nationally scarce dwarf birch Betula nana can also be found on this site. Breeding bird assemblage The extent and diversity of the blanket bog habitat, with its lochs, smaller lochans, peaty pools and small burns, provide ideal conditions for waders and waterfowl to nest and rear their chicks. Species present include black-throated diver, red-throated diver, dunlin, greylag goose, hen harrier and merlin. Common scoter, dunlin, golden plover and greenshank The high breeding densities of dunlin, golden plover and greenshank are particularly notable. Small lochs on the site provide habitat for breeding common scoter.

Species mentioned

English name
search for this in other sites		 Latin name
search with Google		 IUCN / Red List Type Family
black-throated diver Gavia arctica VU (Breeding) bird-diver gaviidae
red-throated diver Gavia stellata LC (NonBreeding), LC (Breeding) bird-diver gaviidae
common scoter Melanitta nigra LC (NonBreeding), CR (Breeding) bird-duck anatidae
greylag goose Anser anser LC (NonBreeding) bird-goose anatidae
hen harrier Circus cyaneus VU (Breeding) bird-hawk falconidae
merlin Falco columbarius EN (Breeding) bird-hawk falconidae
dunlin Calidris alpina EN (NonBreeding) bird-wader scolopacidae
golden plover Pluvialis apricaria LC (NonBreeding), LC (Breeding) bird-wader charadriidae
greenshank Tringa nebularia LC (Breeding) bird-wader scolopacidae
rusty bog moss Sphagnum fuscum LC moss sphagnales
Magellanic bog moss Sphagnum magellanicum Not listed in GB list moss sphagnales
hare's-tail cottongrass Eriophorum vaginatum LC sedge cyperaceae
deergrass, deer sedge Trichophorum cespitosum LC sedge cyperaceae
bearberry Arctostaphylos uva-ursi LC shrub ericaceae
dwarf birch Betula nana LC shrub betulaceae
bell heather or ling Calluna vulgaris NT shrub dwarf ericaceae
bog myrtle Myrica gale NT shrub dwarf salicaceae

Plant communities

M1 — Blanket bog, Raised bog

Sphagnum auriculatum bog pool community

Erica tetralix, Myrica gale, Carex limosa, Eriophorum angustifolium, Rhynchospora alba, Rhynchospora fusca, Trichophorum cespitosum, Eleocharis multicaulis, Juncus bulbosus, Sphagnum auriculatum, Sphagnum cuspidatum, Sphagnum fallax, Sphagnum magellanicum, Sphagnum palustre, Sphagnum papillosum, Sphagnum pulchrum, Sphagnum subnitens, Cladopodiella fluitans, Gymnocolea inflata, Ordontoschisma sphagni, Drosera anglica, Drosera intermedia, Drosera rotundifolia, Utricularia intermedia, Utricularia minor, Menyanthes trifoliata, Narthecium ossifragum, Potamogeton polygonifolius, Scheuchzeria palustris, Molinia caerulea

M2 — Blanket bog, Raised bog, Valley mire

Sphagnum cuspidatum/recurvum bog pool community

Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica tetralix, Myrica gale, Andromeda polifolia, Vaccinium oxycoccos, Carex canescens, Carex magellanica, Carex rostrata, Eriophorum angustifolium, Eriophorum vaginatum, Rhynchospora alba, Aulacomnium palustre, Polytrichum commune, Polytrichum strictum, Sphagnum cuspidatum, Sphagnum fallax, Sphagnum magellanicum, Sphagnum palustre, Sphagnum papillosum, Sphagnum pulchrum, Sphagnum tenellum, Cephalozia connivens, Cephalozia lunulifolia, Gymnocolea inflata, Mylia anomala, Ordontoschisma sphagni, Cladonia impexa, Cladonia uncialis, Drosera anglica, Drosera intermedia, Drosera rotundifolia, Menyanthes trifoliata, Narthecium ossifragum, Agrostis canina, Deschampsia flexuosa, Molinia caerulea

M3 — Blanket bog, Raised bog

Eriophorum angustifolium bog pool community

Empetrum nigrum subsp.nigrum, Erica tetralix, Eriophorum angustifolium, Eriophorum vaginatum, Campylopus brevipilus, Drepanocladus fluitans, Polytrichum commune, Sphagnum cuspidatum, Sphagnum fallax, Sphagnum papillosum, Gymnocolea inflata, Ordontoschisma sphagni, Drosera rotundifolia, Agrostis canina, Molinia caerulea

M15 — Blanket bog, Raised bog, Upland wet heath

Scirpus cespitosus-Erica tetralix wet heath

Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica cinerea, Erica tetralix, Myrica gale, Vaccinium myrtillus, Carex binervis, Carex demissa, Carex dioica, Carex echinata, Carex nigra, Carex panicea, Carex pilulifera, Carex pulicaris, Eriophorum angustifolium, Eriophorum vaginatum, Schoenus nigricans, Trichophorum cespitosum, Juncus acutiflorus, Juncus articulatus, Juncus bulbosus, Juncus conglomeratus, Juncus effusus, Juncus squarrosus, Luzula multiflora, Huperzia selago, Selaginella selaginoides, Aulacomnium palustre, Breutelia chrysocoma, Pohlia nutans, Campylopus atrovirens, Campylopus flexuosus, Dicranum scoparium, Leucobryum glaucum, Racomitrium lanuginosum, Hylocomium splendens, Hypnum cupressiforme, Hypnum jutlandicum, Plagiothecium undulatum, Pleurozium schreberi, Rhytidiadelphus loreus, Rhytidiadelphus squarrosus, Scorpidium revolvens, Scorpidium scorpioides, Polytrichum commune, Sphagnum auriculatum, Sphagnum capillifolium, Sphagnum compactum, Sphagnum fallax, Sphagnum palustre, Sphagnum papillosum, Sphagnum subnitens, Sphagnum tenellum, Calypogeia fissa, Calypogeia muelleriana, Diplophyllum albicans, Lophozia ventricosa, Ordontoschisma sphagni, Pleurozia purpurea, Aneura pinguis, Cladonia arbuscula, Cladonia chlorophaea, Cladonia coccifera, Cladonia impexa, Cladonia uncialis, Succisa pratensis, Drosera anglica, Drosera rotundifolia, Hypericum pulchrum, Triglochin palustre, Pinguicula vulgaris, Menyanthes trifoliata, Narthecium ossifragum, Dactylorhiza maculata, Euphrasia officinalis, Pedicularis palustris, Pedicularis sylvatica, Polygala serpyllifolia, Trientalis europaea, Potentilla erecta, Galium saxatile, Viola palustris, Agrostis canina, Agrostis capillaris, Agrostis stolonifera, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Festuca vivipara, Molinia caerulea, Nardus stricta, Blechnum spicant, Pteridium aquilinum

M17 — Blanket bog

Scirpus cespitosus-Eriophorum vaginatum blanket mire

Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica cinerea, Erica tetralix, Myrica gale, Vaccinium myrtillus, Carex demissa, Carex echinata, Carex nigra, Carex panicea, Eriophorum angustifolium, Eriophorum vaginatum, Rhynchospora alba, Schoenus nigricans, Trichophorum cespitosum, Juncus acutiflorus, Juncus squarrosus, Luzula multiflora, Huperzia selago, Aulacomnium palustre, Breutelia chrysocoma, Pohlia nutans, Campylopus atrovirens, Campylopus flexuosus, Campylopus setifolius, Campylopus shawii, Dicranum scoparium, Leucobryum glaucum, Racomitrium lanuginosum, Hylocomium splendens, Hypnum cupressiforme, Hypnum jutlandicum, Plagiothecium undulatum, Pleurozium schreberi, Rhytidiadelphus loreus, Rhytidiadelphus squarrosus, Polytrichum commune, Polytrichum strictum, Sphagnum auriculatum, Sphagnum capillifolium, Sphagnum cuspidatum, Sphagnum imbricatum, Sphagnum magellanicum, Sphagnum palustre, Sphagnum papillosum, Sphagnum strictum, Sphagnum subnitens, Sphagnum tenellum, Calypogeia fissa, Diplophyllum albicans, Kurzia pauciflora, Lophozia ventricosa, Mylia anomala, Mylia taylorii, Ordontoschisma sphagni, Pleurozia purpurea, Ptilidium ciliare, Scapania gracilis, Cladonia arbuscula, Cladonia coccifera, Cladonia impexa, Cladonia uncialis, Cornicularia aculeata, Drosera anglica, Drosera rotundifolia, Vaccinium vitis-idaea, Pinguicula vulgaris, Narthecium ossifragum, Pedicularis sylvatica, Polygala serpyllifolia, Potentilla erecta, Galium saxatile, Agrostis canina, Anthoxanthum odoratum, Deschampsia flexuosa, Festuca ovina, Molinia caerulea, Nardus stricta

M18 — Blanket bog, Raised bog

Erica tetralix-Sphagnum papillosum raised and blanket mire

Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica tetralix, Myrica gale, Andromeda polifolia, Vaccinium myrtillus, Vaccinium oxycoccos, Eriophorum angustifolium, Eriophorum vaginatum, Rhynchospora alba, Trichophorum cespitosum, Juncus squarrosus, Aulacomnium palustre, Pohlia nutans, Campylopus flexuosus, Dicranum scoparium, Racomitrium lanuginosum, Hypnum cupressiforme, Hypnum jutlandicum, Plagiothecium undulatum, Pleurozium schreberi, Rhytidiadelphus loreus, Polytrichum commune, Polytrichum strictum, Sphagnum capillifolium, Sphagnum cuspidatum, Sphagnum fallax, Sphagnum fuscum, Sphagnum magellanicum, Sphagnum palustre, Sphagnum papillosum, Sphagnum pulchrum, Sphagnum subnitens, Sphagnum tenellum, Calypogeia muelleriana, Cephalozia bicuspidata, Cephalozia connivens, Cladopodiella fluitans, Kurzia pauciflora, Lophozia ventricosa, Mylia anomala, Ordontoschisma sphagni, Hypogymnia physodes, Cladonia arbuscula, Cladonia gracilis, Cladonia impexa, Cladonia uncialis, Drosera anglica, Drosera rotundifolia, Vaccinium vitis-idaea, Narthecium ossifragum, Rubus chamaemorus, Deschampsia flexuosa, Molinia caerulea

M19 — Blanket bog, Raised bog

Calluna vulgaris-Eriophorum vaginatum blanket mire

Empetrum nigrum, Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica tetralix, Betula nana, Arctostaphylos alpinus, Vaccinium microcarpum, Vaccinium myrtillus, Vaccinium oxycoccos, Vaccinium uliginosum, Carex bigelowii, Carex binervis, Carex nigra, Eriophorum angustifolium, Eriophorum vaginatum, Trichophorum cespitosum, Juncus squarrosus, Luzula sylvatica, Huperzia selago, Aulacomnium palustre, Pohlia nutans, Campylopus flexuosus, Dicranum fuscescens, Dicranum majus, Dicranum scoparium, Racomitrium lanuginosum, Hylocomium splendens, Hypnum cupressiforme, Hypnum jutlandicum, Plagiothecium undulatum, Pleurozium schreberi, Rhytidiadelphus loreus, Rhytidiadelphus squarrosus, Polytrichastrum alpinum, Polytrichum commune, Polytrichum strictum, Sphagnum capillifolium, Sphagnum compactum, Sphagnum fallax, Sphagnum fuscum, Sphagnum palustre, Sphagnum papillosum, Sphagnum russowii, Sphagnum subnitens, Sphagnum tenellum, Barbilophozia floerkei, Calypogeia fissa, Calypogeia muelleriana, Calypogeia trichomanis, Cephalozia bicuspidata, Diplophyllum albicans, Kurzia pauciflora, Lophozia ventricosa, Mylia anomala, Mylia taylorii, Ordontoschisma sphagni, Ptilidium ciliare, Hypogymnia physodes, Cetraria islandica, Cladonia arbuscula, Cladonia bellidiflora, Cladonia coccifera, Cladonia floerkeana, Cladonia gracilis, Cladonia impexa, Cladonia squamosa, Cladonia tenuis, Cladonia uncialis, Cornicularia aculeata, Cornus suecica, Drosera rotundifolia, Vaccinium vitis-idaea, Pinguicula vulgaris, Narthecium ossifragum, Neottia cordata, Potentilla erecta, Rubus chamaemorus, Galium saxatile, Melanpyrum pratense, Deschampsia flexuosa, Festuca vivipara, Molinia caerulea, Nardus stricta, Blechnum spicant

M20 — Blanket bog, Raised bog, Valley mire

Eriophorum vaginatum blanket and raised mire

Empetrum nigrum subsp.nigrum, Calluna vulgaris, Vaccinium myrtillus, Carex bigelowii, Eriophorum angustifolium, Eriophorum vaginatum, Trichophorum cespitosum, Juncus squarrosus, Orthodontium lineare, Pohlia nutans, Campylopus flexuosus, Dicranum scoparium, Drepanocladus fluitans, Hypnum jutlandicum, Plagiothecium undulatum, Pleurozium schreberi, Polytrichum commune, Sphagnum capillifolium, Sphagnum fuscum, Sphagnum papillosum, Barbilophozia floerkei, Calypogeia muelleriana, Calypogeia trichomanis, Cephalozia bicuspidata, Cephaloziella hampeana, Diplophyllum albicans, Gymnocolea inflata, Kurzia pauciflora, Lophozia ventricosa, Mylia taylorii, Ptilidium ciliare, Cetraria islandica, Cladonia arbuscula, Cladonia chlorophaea, Cladonia coccifera, Cladonia floerkeana, Cladonia impexa, Cladonia squamosa, Cladonia uncialis, Cornicularia aculeata, Rubus chamaemorus, Deschampsia flexuosa, Festuca ovina

M25 — Blanket bog, Coastal floodplain grazing marsh, Lowland fen, Purple moor grass and rush pasture, Upland acid grassland

Molinia caerulea-Potentilla erecta mire

Salix cinerea, Calluna vulgaris, Erica tetralix, Myrica gale, Vaccinium oxycoccos, Ulex europaeus, Ulex gallii, Carex echinata, Carex flacca, Carex nigra, Carex panicea, Eriophorum angustifolium, Schoenus nigricans, Juncus acutiflorus, Juncus articulatus, Juncus effusus, Juncus subnodulosus, Luzula campestris, Luzula multiflora, Aulacomnium palustre, Pohlia nutans, Calliergon giganteum, Calliergonell cuspidatum, Hypnum jutlandicum, Kindbergia praelonga, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Polytrichum commune, Sphagnum auriculatum, Sphagnum capillifolium, Sphagnum fallax, Sphagnum palustre, Sphagnum papillosum, Sphagnum subnitens, Calypogeia fissa, Cephalozia bicuspidata, Lophocolea bidentata, Lophozia ventricosa, Angelica sylvestris, Carum verticillatum, Hydrocotyle vulgaris, Achillea ptarmica, Centaurea nigra, Cirsium palustre, Eupatorium cannabinum, Pulicaria dysenterica, Serratula tinctoria, Cardamine pratensis, Lobelia urens, Succisa pratensis, Valeriana officinalis, Equisetum palustre, Lotus pedunculatus, Hypericum pulchrum, Hypericum tetrapterum, Mentha aquatica, Scutellaria minor, Menyanthes trifoliata, Narthecium ossifragum, Epilobium palustre, Dactylorhiza maculata, Rumex acetosa, Ranunculus acris, Ranunculus flammula, Filipendula ulmaria, Potentilla erecta, Rubus fruticosus agg., Galium palustre, Viola palustris, Agrostis canina, Agrostis capillaris, Agrostis curtisii, Agrostis stolonifera, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia cespitosa, Festuca ovina, Festuca rubra, Holcus lanatus, Molinia caerulea, Nardus stricta, Phragmites australis, Dryopteris carthusiana, Osmunda regalis