Unusual visitor on Grenadier

The Farrs on Grenadier had an unusual visitor yesterday -- a mallard duck spent the day on their front porch. He did not appear to be injured, as he flew away and came back again. He seemed tame, so we don't know if this is someone's pet or one of the wild ducks from the creek. He was gone this morning, so hopefully he's back with the rest of his flock