This video from Husqvarna is 23 minutes long, but it’s worth your time if you use a chainsaw. It is professionally done with graphics and effects that make it an interesting watch even for seasoned saw users.
Limbs and small trees bent by a fallen neighboring tree contain explosive tension. These spring poles can snap back or even shatter if cut haphazardly. Special techniques and training are required to cut them safely.
An uprooted tree can be safe when lying on the ground, but it can become a hazard if someone attempts to cut it. The heavy roots, stump and stem contain dangerous crushing force. Special techniques and training are required to cut up-rooted trees safely.
Widow-makers are broken branches or fallen trees suspended in your woodlot's canopy. They can also be rotten trees on the verge of falling. Widow-makers can fall without warning. Know what to look for so you can avoid these hazardous limbs and trees.