I have been stumped as I now have 3 of my Silkies pullets get poo stuck to feathers. I have routinely check for mites and lice, vents looks fine no sign of anything there, eggs are clean. Poo is normal color and consistency. Active, eating, drinking. What I have noticed is it begins shortly after they start laying and being mounted by my cockerel. Anyone know if this is normal? Is there something I can do?