Perryfields, Portland

Limestone grassland with a rich array of wildflowers

PerryfieldsThe limestone grassland of this Reserve provides a rich array of wildflowers including birds-foot trefoil, kidney vetch and horseshoe vetch.

These are good for butterflies and for other insects such as the Grey Bush-cricket. The sheltering copse of sycamore and ash trees and the scrub-covered slopes down to the disused railway track provide roosting places for insects and shelter for birds, particularly tired migrants arriving on Portland. The sheltered tall grass is one of best sites on the island for glow worms.

Management is carried out to stop the scrub encroaching onto the grassland, particularly non-native plants like Cotoneaster horizontalis which poses a serious problem.

There may be guided walks and conservation work you can join on this reserve: see our Events page.

Site Details
Near Easton, on the east side of Portland.  

Butterfly species include

  • Chalkhill Blue – July
  • Small Blue – May/June and July/August (pictured right)
  • Grassland species - Small and Large Skipper,
    Ringlet, Meadow Brown and Marbled White
  • Look out for migrants! – Painted Ladies, Clouded Yellows
Small Blues

Moth species

Day-flying moths

  • Four-spotted (nationally threatened - pictured right)
  • Six-spot Burnet
  • Cinnabar.

Night-flying species

  • Portland Ribbon Wave
  • Beautiful Gothic
  • Valerian Pug
 Four-spotted moth
Other species


  • Warblers and other migrants in the bushes and trees in spring and autumn
  • Green Woodpecker
  • Raven, Peregrine Falcon and Kestrel passing
Habitat type/ features 1.2 hectares (c. 3 acres) of infilled quarry with a limestone cap, leased as a reserve since 1998, and part of the Bottom Coombe Site of Nature Conservation Interest (SNCI) complex.  

Grid Reference: SY 695 713 Ordnance Survey Landranger Map: 194

The reserve lies above the Museum car-park, on western side of Pennsylvania Road, Easton, on the Isle of Portland. Take the A354 onto Portland and through Easton. Continue along Wakeham to its end, - the public car park is on the right hand side of the road opposite Pennsylvania Castle. Walk up the steps onto the reserve.

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