Last Sunday was a spectacularly beautiful day and I was able to take a walk in the Pound Ridge Reservation with son Andrew and some friends. Spring is beginning to stir most in the swampy areas where clumps of bright green moss are beginning to emerge, green and purple spotted skunk cabbage is poking up through the wet leaves,  and all around there are sounds of frogs croaking and birds calling.  Not far along the trail was a pond teeming with mating frogs. The sound of their calls filled the air. We sat by on a rock and listened, letting the sound surround us.