Our rooster, Nick Fury - yes, we are Avengers fans , a splash Marans was sitting on his breast, wings drooping when I went out to feed the gang today. When I picked him up, I could feel his keel bone and he felt really light. He was since been quarantined in the house. My son assisted in feeding him, combination of feed, water, and Duramycin 10 into a mash and used a syringe and tube to get him food. He did drink water (added vitamins/electrolytes) on his own, but I am wondering what else to do. Today would have been the last day of medication. Some of the birds had shown signs of sinusitis, which is why the Duramycin 10 was used. I am thinking of picking up some penicillin. Any suggestions would be helpful. Our family is new to this and are learning everyday. Suggestions as to what to look for would be great.