Wow that is scary. Has anyone had similar problems with birch trees? I have hunted out of some of them near riverbanks and always wondered if they too would tip over like that. Mostly white birch trees.
I dont think I've ever seen a white birch in my area that was big enough to climb. Around here, the white birches tend to have multiple small trunks, rather than a single big one. I dont know why this would be.