I am guessing that in order to keep their social ranking, the hens need to interact with the flock on a daily basis, pecking or chasing the lower ranking hens to constantly reinforce their own rank. When a hen goes broody, they isolate themselves for an extended time period, and the lower...
One thing I recall from when my Noir Maran hen sat on and hatched eggs last summer, is that she lost all of her social rank during the process, and went to the very bottom of the pecking order by the time she went back to the flock. I wonder if that will happen to your silkie?
I am now hooked on this thread. It seems very early in the year for a hen to go broody!
Last year my broody hatched 5 eggs in June. 2 were roosters and 3 hens--all the hens are now laying olive eggs. We should have had 10 eggs hatch but we were new to it, made a mistake, and lost 5. But...