Pasty Butt What is pasty butt? Also known as pasted vent. This is when a poo sticks to the fluffy down feathers around the chicks vent (bottom). The next poos then gets stuck to the first one and it builds up. These can then harden, clog up and completely block the exit, meaning that the chicks poos can’t get out! This is fatal if not treated! It is essential that chicks are regularly checked and treated if needed! When checking your young chicks, make sure that you don’t get their drying umbili