I took care of the chickens tonight and noticed a considerable amout of blood coming from my rooster's (Pops) rectum. Pops rectum appears to be bulging and he seems to be experiencing severe constipation (he squeals when he has to go). I can see the stool trying to emerge. I didn't know if it is best to allow Pops to pass the stool on his own or if there is anything I can do to help him? I isolated him from the other chickens and I just gave him treatment (Corid) for coccidiosis. However, Pops is 4 years old so I am not sure this is really the issue here. We did get an unusual amount of rain and I am not sure if he chose to drink from one of puddles in the horse pens (I heard contamination can be an issue with this type of situation). Any help or feedback would be greatly appreciated... Thank you.