I have 3 young hens, bought them last year (spring), and I have one older hen laying and one younger hen sitting, but not laying and the other young hen is just watching with amusement as the other two fight for the same spot. I thought I had heard at one time that sometimes they get clogged up and you have to unclog them. Has anyone else heard of this malady? The other hen seems like she's bulging and needs to lay. And yes, I do have a rooster, bought at the same time.