Yesterday when I was raking snow off my roof, I heard and saw a sandhill crane headed north. It should have been headed back south as there is no bare ground at my place and my pond is still frozen. The crane might have been reading a calendar since seven years ago, they came back to this scene where there was no snow remaining. Otherwise, the female crane might have sent the male (as they mate for life) ahead to find the perfect nesting spot before the spring rush, but locating a good spot under two feet of snow might be tough.
Crane Back Early