Yep its the rain crow down here. I heard the first one of the summer last week. They feed on the various worms that live in the hardwoods. I also noticed a few large worms crawling in the yard probably looking a spot to make a cocoon. The cuckoos are migratory. They are quite hard to spot usually working the high canopy. I usually get to see several each summer when they visit the hickories and red oaks next to my house.