Some very nice artificial knot-holes on the market right now. I think McKenzie and VanDykes both carry a couple to choose from. They are very realistic, and would add some true realism to the mount. The hen is usually the one peering out the hole, and you only need half a hen. Very easy mount. Add to that the Freeze dried Baby Chicks, and you have a real winner. I bought some day old (dead at birth) Baby Woodies from a breeder in Fresno California, and sent them out to get freeze dried in Chicago Illinois for $35 each, and they look great. I haven't put the piece together yet, but I do have all the specimens.