Didn't @BY Bob 's Hattie do that a lot? Her health problem is not related to her reproductive health.It's a thing I've wondered about with those hens that keep going in the nests like they are going to lay, but don't. First, I thought it was pretense. Then when both Cannelle and Brune did it and got infections I thought it was a sure sign of disease. Then, after that I also saw chickens doing it but not really showing certain signs of being unwell. Like Kara, who doesn't seem to be ill although she had issues laying. So I'm not sure how worrying it should be.
Do people who have heritage or cross chickens have ever noticed this behaviour without it being at all a sign of a health issue ?
On the other hand, at my house Sandy used to sit on a nest without laying or being broody. She had reproductive health problems leading to euthanasia.
It's only two data points but they don't agree.
I think that if sitting without laying or brooding were a health indicator, it would be known to the vets by now.