Today a family member witnessed a ruffed grouse attack a squirrel at my house. The squirrel was apparently foraging on what ground has been opened up by melting snow, and the ruffed grouse flew out of the tree and "hit" the squirrel. The grouse then began foraging on the same area of open ground the squirrel was on. This ruffed grouse was first seen at my house on Sunday, where he was feeding on the same piece of open land. He stayed for about 4 hours Sunday hanging out underneath the swingset and foraging on the open land before he wandered off into the woods and flew away.