Birch trees are bad for having rotten centers but they look sound because of the bark.
If I have a back leaner I think is rotten I will screw a long 2x4 straight up the tree then hook either my come a long or portable 12 volt winch on using chain cable or straps .
Kash
If I have a back leaner I think is rotten I will screw a long 2x4 straight up the tree then hook either my come a long or portable 12 volt winch on using chain cable or straps .
Kash