I heard them today. That chortling trilling murmuring that is at first so part of the background noise that you aren't even aware of it but just know you sense something . . . different, comforting, hopeful, alive. Then it builds a little and bursts into your consciousness: Cranes! Migrating! Many many of them, high above, sometimes too high to see, sometimes behind light clouds. But cranes! Sandhill cranes! It is, it must be . . . spring!