Friday afternoon my silkie rooster was doing great. I was out of town until this afternoon, and he's been in rough shape. My husband said he seemed cold yesterday, so he put our roo in a clean, small box with towels to keep him warm (it didn't get below 50*F, but it was rainy). He has very labored breathing, and is very weak. He won't take any food or water. He does have what look like yellow plaques in his throat. Please help!