The bales of 'hay' the body is part of are actually bales of straw. Hay is for food. Straw is for bedding.
In the kitchen scene at the end, Dr. Gordon Wyatt pours Château neuf du Pape from a Bordeaux-style bottle. Chateu neuf du Pape is bottled in bottles with rounded sides similar to those from Burgundy.
Dr. Fuentes Ignacio Serricchio states to Dr. Saroyan Tamara Taylor that he didn't want to wear the new blue lab coat, because it would just remind him that he has to move on now, and wearing it makes it too real for him. Later, when he is approached by Dr. Brennan Emily Deschanel he is wearing the blue lab coat. (This signifies that he has accepted the fact that his tenure at the Jeffersonian will soon come to an end. Perhaps alluding to the upcoming series finale.)