By Campola (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia CommonsThis gargoyle is so strange! From the differences in the stone, I assume that the creepy head is a later alteration or restoration, but I’m still not sure what the figure is supposed to represent. The words “crazed donkey” come to mind, however.