So always seek advice from an experienced tree surgeon and structural engineer before felling a mature tree, and check first whether it is protected by contacting the local planning authority.
Felly ceisiwch gyngor gan feddyg coed a pheiriannydd strwythurol profiadol bob amser cyn torri coeden aeddfed, a chysylltwch â'r awdurdod cynllunio lleol yn gyntaf i weld a yw wedi'i hamddiffyn.