I have two tribes unfortunately, because the four chicks hatched by Chipie have never been integrated by the original flock. With her hatch mates, there was no hierarchy up to now. Piou-piou was the first to lay and the first that Gastounet mated. Now he's begining to court and mate the two others, and she probably wants to maintain her special status.
*******
About the influence of winter on pullets beginning to lay, I recently came upon
this post and was interested as I had not read something like this before
"The actual length of daylight isn't that important, whether the days are getting longer or shorter is the really important part"
The source of the information isn't mentioned and I don't know the poster's degree of expertise, but it's different from what is usually said that more or less under a certain number of hours of day light a hen will not begin to lay.
I also hope Bernadette has no issue. She certainly looks lovely and healthy in both pictures.