By Lesley Parilla, Field Book Project Example of animal tracks from Vernon Bailey's notes, 1890 - 1891. Smithsonian Institution Archives SIA RU 007267, Box, Folder. Portion of SIA2011-1410 Waste, feces, poop, guano, skat, droppings--English has a plethora of words for a topic about which most of us do not want... More...