I lost Ivan, my favorite rooster today. He was a sweet and friendly blue copper marans from a good line. He was fine this morning and behaved like he usually does when I let them out today, and I found him dead in the coop just now when I went in to check for eggs. His comb and wattles are a dark mulberry color. He was 4 years old. I wondered if anyone knew if this might be a heart attack, since the comb was so dark. Not a mark on him and I was outside near the coops most of the day, so I know there were no predators or undue excitement.