I live in Scotland UK, and recently new farm tenants next door yesterday burnt their field -there were a few rats in our garden yesterday because of this as I presume they were driven out of the field. Problem is; as we were cleaning out the duck house we found 3 1/2 dead baby rats (one's body had been ate with no remains). There is only a small hole in the duck house which I presume where they came from. We put traps down last night to find a single rat head in one of the traps - again no body and no remains? I'm fearful it's either a rogue rat or even worse a ferret / weasel as the latter would definitely kill my chickens (which include small bantams) for fun. Has anyone got any opinions? Thanks.