We currently have 9 hens and 2 roosters. 3 of the hens aren't ready to lay eggs yet and 1 rooster isn't ready to make eggs yet (although he tries), but they're getting close. I don't know what breed they are as they came with the house we rent but they're small.. Anyway, in the last month two of our hens have nested for about two weeks, and then stopped. They do get off them during that time a little more than usual to eat, but I was just wondering why this is? The first time this happened, I was throwing the eggs away as she had been off them for probably the whole night, and one cracked and there was a half-formed baby chook in there, and at least another two that were as heavy as that one (she was sitting on 8 eggs). This happened again with another chook, she was sitting on 6 eggs and I had to chuck them away yesterday as she hadn't been near them all day. Yesterday, another chook started nesting, I thought she may just be laying an egg, but she's still there almost 24 hours later. Why do they keep doing this and how can I stop it? Also, what should I do? Thanks!