brochure: Describes wildlife tree (defined as any standing tree, dead or alive, with special characteristics that provide habitat for wildlife) and dangerous trees. Some of the attributes that wildlife trees valuable habitat, also make them dangerous to workers. Dangerous tress are defined as:
...any tree that is hazardous to workers because of:
• location or lean
• physical damage
• overhead hazards
• deterioration of limbs, stem or root system
• a combination of the above.
Ministry of Environment, Lands & Parks. 1999. Wildlife Trees & Dangerous Trees - Identification and Management