I started giving my 4 bantams outside time for most of the day last 3 weeks and have been fine. Yesterday I noticed one sitting by itself, puffed up and head down and then noticed blood. I checked for injuries and saw no blood on vent or anywhere on chick. She feels hotter than the other birds. I brought them in and she is still eating and drinking but not alot because her crop doesn't seem to have anything in it everytime I check. I started corrid on all of them was feeding medicated feed. They are now all back inside in quarantine away from my other birds. I'm going to start electrolytes with the corrid. Is there anything else I can do or is this something else. I appreciate any help.