I've lost 2 roosters in the last 2 weeks. The first one seemed to be off his feed but was still enjoying the Alphalfa before he expired. The other was just fine, no problems with eating or drinking at all. When I went to feed yesterday afternoon he was on his back barely breathing. Over the next couple of hours he rolled over a few times, eyes were going everywhere and finally about sundown he gave out. The hens are fine, but I only have one rooster left and I'm worried that he too will go. Any ideas what could be causing this?