Apparently chicks can get something called "pasty butt" which is what happens when they have a little constipation and the poo blocks their vent. (Vent is the chicken word for anus.) I've read many warnings about the danger of pasty butt, so naturally, I've kept a look out. Sure enough, two of the girls needed attention this morning.
The remedy - hold the chicken's butt under warm running water, and use a paper towel to gently wipe the dry poo away. Pat dry. Using a qtip, swab the vent with a little vaseline or olive oil. This prevents new poo from sticking to her rear end.
I know this is more than you ever wanted to know about chicken butts. It is certainly more than I ever thought I would know!
Let's hope this is the last we will see of pasty butt!