Scientific Reserve and Forest Restoration Project   We are stood on the hill looking down upon the finest remnant of indigenous lowland forest (podocarp-broadleaf) in the district. It is under attack from old man’s beard, and blackberry etcetera, invasive wandering willy, possums, stoats, rats, mice and from us.                                     The botanist in muddy boots had great hopes of                                                                         avian flu but it came to nothing this time round.             The only northern rata has just died.             Nobody knows how the bush unzips.             There is no reason for a tree to die.             But they do die. Nobody…