TV presenters Chris Packham and Martin Hughes-Games from BBC Springwatch visited the reserve in May, filming coral root
orchid and a roost of 70 noctule bats heading out for the night.
Gosforth Park nature reserve in Newcastle is home to the second biggest colony of coral root orchids in England.
Society director James Littlewood said: "This is a major concern for our native plants, in particular the coral root orchids.
Presenters Chris Packham and Martin Hughes-Games studied Noctule Bats and Coral Root
Orchid at the reserve when they visited last month.
The Coral Roots
& Echoes (Deltasonic) Rating **