Randy, I know we pretty much agree on everything in nature, owls in the evening after the other birds go to sleep, the call of the Whippoorwill, the bobwhite in the mornings, even the sparrows are good to hear when you are outside when its springtime.
And one of the most satisfying sounds there is when you are trying to take it all in, the very distinct crack of a 220 swift round at 4000 fps taking the dang feral cat off of the fencepost outside your bedroom window at midnight that is yowling for a mate or a fight with another tom.