I have six ISA Browns who were laying six eggs a day for a while. Now we get about four or five per day. Most days there will be one of the girls sitting on the eggs or just sitting in the nesting box while the others are in the run. I'll pet her and she will chirp, then get up and leave. Sometimes I have to persuade her to move. She is eating and drinking just fine and doesn't seem to be in any distress. I've felt her abdomen and don't feel any stuck eggs or anything weird. What's going on? Please teach me something my fine feathered friends!