Other species include common blue, marbled white, wall brown and small and large skippers.

[3] Hogtrough Bottom, is on the east slope of the Down and has a mixture of taller grasses, short sheep’s fescue turf and scrub.

There are lots of scarce species such as bastard toadflax, waxcap and webcap fungi, four-spot orb-weaver and purseweb spiders, but David Bangs, Sussex field naturalists says, "the main delight is the tapestry of summer colours - purple knapweed and felwort, blue scabious, yellow hawkbit and rockrose".

[4]:293 The south slope of Bevendean Down and Hogtrough Bottom have been designated as a Local nature reserve.

Far up the dean, beyond the Primary School, a wood tumbles down the slope between Norwich Drive and Heath Hill Avenue.

[4] The site is so special that the entire woods has been designated a Local nature reserve with Bevendean Down and Hogtrough Bottom.

The south side of the Bevendean estate is a place of horse paddocks and scrub thickets, old allotment sites and cattle grazing.