HOW much music (wild, simple, savage, doubtless, but so tart-sweet,) there is in mere whistling. It is four-fifths of the utterance of birds. There are all sorts and styles. For the last half-hour, now, while I have been sitting here, some featherd fellow away off in the bushes has been repeating over and over again what I may call a kind of throbbing whistle. And now a bird about the robin size has just appeard, all mulberry red, flitting among the busheshead, wings, body, deep red, not very brightno song, as I have heard. 4 oclock: There is a real concert going on around mea dozen different birds pitching in with a will. There have been occasional rains, and the growths all show its vivifying influences. As I finish this, seated on a log close by the pond-edge, much chirping and trilling in the distance, and a featherd recluse in the woods near by is singing deliciouslynot many notes, but full of music of almost human sympathycontinuing for a long, long while.