Ash trees are coming down like that around here. It almost appears as if they are particularly brittle.A few weeks ago, DH and I were hiking along the cabin trails through the woods. DH is always lagging behind me about 15-20'. We had just crossed over a little wood plank bridge when I heard a THWUMP behind me. I turned around and saw a rather large dead branch had fallen right behind me and right in front of DH. It was definitely large enough that if either of us had been hit by it we would have been seriously injured. It wasn't even windy that day.