When we sold our first house, several days before we moved, there was an owl in the front tree. It was the first time I had seen (at least as an adult) an owl in the wild, and I remember thinking "why couldn't this have shown up when we lived here?"
Two weeks before we moved out of the House in the Woods, I heard owls outside our window, several nights in a row. Again, I thought, "why haven't they been around before? Why do owls show up when I'm leaving somewhere?"