Much neater after my brother and I sawed up all the fallen branches. The lawn underneath is still covered with black walnuts. It's dangerous for the ankles.
@seacreature I've been waiting for the critters pick them up. Apparently they are not ripe yet because I haven't seen any squirrels carrying them around. I guess I'll have to pick them up. I use a stable fork because the nuts are about the same size as horse buns so it's not really hard work. Just boring.