I have 3 white wyandotte hens, who are 25 weeks old. One started laying 3 weeks ago, and another, yesterday. The third has been going in the nest box for long periods of time for the past week, but has not laid. She is acting normal, otherwise, eating and drinking and walks around the yard with the others, but I'm starting to wonder if she's egg bound. I felt around her vent and don't feel a lump, but I'm not really sure if I'm feeling in the right spot. Has anyone experienced this behavior prior to the first egg?