I have a Douglas Fir tree that I transplanted from an un-advantageous growing location to a better location about 4 years ago. It was about two or three years old at the time and maybe 4 feet tall. It has done very well. It is now nearing 11 feet tall and branching out and growing vigorously. This year the "leader" grew about 3 feet. This year's growth is from the last set of branches to the top where it seems to be trifurcating. This is the most it has grown in a year yet. The fence next to the tree is 5 foot high. Recently it seems like the top is trying to split or bifurcate into two or more trunks (see attached pics). I do not know if those are branches near the very top or if the tree is creating separate trunks. I think it is a split into different trucks because they seem to be growing vertically rather than horizontally. Could you advise if those could be branches or if the tree is creating separate trunks. Also would it be better for the tree to have those bifurcations removed? Would a single trunk be stronger? It seems to me that three trunks is a strength issue. If I chose to remove the bifurcations would that harm the tree? Thank you for your time.