I just spent a couple weeks at two different youth camps. It was a great way to enjoy the summer. I did miss my hens though while I was gone. I got so desperate, I found myself trying to lure seagulls to eat from my hand while at the beach at Bear Lake. One brave bird would fly by me and I would toss a piece of bread in the air and he would grab it. That was fun.
I just read a great article with photos titled "9 Point Comb to Toe Checkup and DIY Antiseptic Ointment" on how to monitor the health of your chickens.
The article outlines 9 things to look for when analyzing their health. You can find it at the following website: http://communitychickens.blogspot.com/2012/07/9-point-comb-to-toe-chicken-check-up.html#.UA_-PKOO4_g
It has lots of good information!