My two year old Silkie Roo recently seemed to be feeling a little unwell. I checked on him one day because he looked puffed out as if he was cold, which was rare for him. He perked up when he saw me and was moving normally so I didn't think anything of it. The next day, he was staying away from the other birds. I took him out of the coop and put him with me where I checked him for anything unusual. Nothing. Within that half hour, he refused water and eventually had a seizure that lead to his death. What could cause this??? It all happened really quick.