RSPB Arne - May A testing but rewarding site to visit its size makes it difficult but the inhabitants make it well worth the effort. Well known for the abundance of Dartford Warbler. Images - Dartford Warbler. Corn Spurry, Sea Milkwort, Common Heath Durlston Park - May One of the best all round sites in Dorset far too many species both flora and fauna to list I always give this site a couple of visits when I'm down there . Images - Wild Clary, Three-cornered Garlic, Common