One of my hens is a white hen I believe to be a Sussex or Columbiana. Really not sure but when I bought her the lad said his hens were laying. I have never seen her lay though I see her in the nest box often. I don't think she's broody and I've had her for at least 4 months now. Can I tell if she's actually laying without isolating her? I have checked her vent and it's not dry. It compares to the ones I know are laying. I fear she'll be heading for the pot soon.