Are your chickens legs looking a bit strange? Knobbly with the scales sticking out? It sounds like scaly leg mite, (or scaley leg mite depending on your splelling) a common parasite among chickens.
The DW743 flip over saw is a classic icon on building sites everywhere, this hub is my expert review from a professional owner and daily user. I wrote this hub because I rely on my DW743 every day to earn my living...