You've all been very helpful with my new chickens that I rescued from a live poultry market in the Bronx. Their respirtory(sp?) issues appear to have resolved themselves. Now the chicken that was sicker appears to have a problem with her rear end. I gave her a bath as I noticed her straining to poop, and she was all crusty. As soon as she was out of the water she pooped. The area beneath her vent is all red and swollen. I manipulated it and didn't feel anything. What could cause this swelling? Since I bathed her she has eaten and drunk water, plus she's pooping, but she is still very lethargic. Our other chicken is now completely recovered and full of energy, I'm concerned for the sicker one. I put her back in the coop and left a heat lamp on to help her dry out before night falls. Any ideas what would cause swelling about an inch beneath her vent?