My 23 wk old Buff Orpington has these pimple-like bumps on her legs. I noticed them a few days ago, and decided to watch them, but they've gotten worse. If I apply light pressure they crack at the scale boundaries and are filled with blood and pus. The yellow inside seems to be a kind of waxy pus. I have looked everywhere for pictures that look like these, but I can't find anything. I took a picture of the front of one foot as the scales do have some dirt beneath them and could be scaly leg mites?? She is walking/running/eating/drinking normally. Not laying yet. My other Buff Orp has some similar bumps, but less severe. Please let me know what you think! Thank you!