Conny, everything Wynette said and then some. I posted a link to poop pics in your other thread, it's a very handy reference page.
Here it is again.
http://chat.allotment.org.uk/index.php?topic=17568.0
Very sorry about your hen.
Here it is again.
http://chat.allotment.org.uk/index.php?topic=17568.0
Very sorry about your hen.