Bruce, thanks for the update. I can vouch for "hen-dogs". My hens arrived before the henny-hoose was ready so stayed at a neighbouring farm. Piper, the sheep dog was sent out to herd the hens into the hen house at night. Now months later I can yell "Go get, Piper!" and the hens run for the hen house - despite Piper being over a mile away! Sian Graemsay