I got my first ever hens in August. They started laying in January. No problems. But now two hens- a Maran and an olive egger- started having some issue about the nest boxes. Sitting in there. Squawking . Hours. Now they aren’t laying eggs. Just sitting in there for hours. If I take them out they just continue going around yard squawking to go back in nest box. What is happening and what can I do?