That really worries me. I will try to do some researching into it tomorrow. I lost my beautiful lavender orphington rooster about a month ago and called the Rollins lab to see how I could get him to them for a necropsy. He literally fell off a perch dead while I was gone to the grocery store. Perfectly fine and feisty as usual when I left and I found him dead on the ground when we got home! Not a mark on him - perfectly normal on the outside. It was devastating....he was strikingly beautiful and, unfortunately, I had not gotten around to breeding him with my lavender orp hens

Turns out, I should have refrigerated him immediately. It was too late for the lab to do an accurate necropsy so I do not know what on earth happened. I am ready now if it happens again - hopefully it never will, but in reality I know these things happen. I will know what to do and who to call.