Hi BYC friends. Need your advise. I have a 13 month old hen who has not laid an egg in 4 days. She goes in the nesting box for about an hour (her normal time) squawking on the way in and on the way out (as she normally does) but does not lay an egg. Her sister is molting -- an early molt but the vet said it was fine. She shows no signs of loosing feathers. Could she be molting too? I felt around her fluffy bottom and do not feel anything hard like an impacted egg. Would I feel one if there was one??? Thank you in advance for any advise!