I posted this on the Emergencies/Disease thread, but am putting it here hoping a fellow NN'er has seen this before:
I have a 5 wk old NN. I noticed these bumps on his neck about a week ago. They look like little clear round blisters. The old bumps are now scabbing over but new bumps are showing up in other areas of the back of his neck. The area is also raised. The best way to describe it is it looks just like poison ivy. If you look at the left of the picture where the skin is tented, on the part closest to you, you will see a blister.
There are 9 chicks. I just now noticed today that a couple more are developing what I can best describe as thickened skin on the back of the neck and tiny, tiny bumps. Also, it may be unrelated, but a couple the the "boys" have sort of crinkled wattles (but no sores on them). They are in a brooder pen in the garage on pine shavings, changed every 3-4 days, and were under a heat lamp until today. I open the garage door in the daytime so they can sun at one end of the pen.