Cali Heath was granted to the poor  during the American gold rush hence its name . The 2 set aside fields were purchased by YWT is 2003 were re-seeded with a species mix to recreate the natural grasslands. Restoration is really working on the site, with one of the seeded grasslands now species rich. Opposite the entrance is a very sandy dry heathland pock marked with ant hills and closely grazed by rabbits. 

Brimstone  and Comma are seen in S2 and S3 woodland  and hedges along with Speckled Woods.  S3  is favoured by Gatekeepers Meadow Browns and Ringlets and Marbled White. Small Copper is seen in S3. Dingy Skipper is seen in S1 along with Small Heath.