If she gets off herself, don't worry about it at all. I would check her every day to ensure she looks healthy.
There have been hens that have starved themselves to death, so saying leave it all to nature is saying if she dies it's nature's way. My silkie hen Lorraine (mother of your silkies) goes broody VERY often, and so does her mother, so it is to be highly expected from the two silver silkies you have. The black one will be better.
There have been hens that have starved themselves to death, so saying leave it all to nature is saying if she dies it's nature's way. My silkie hen Lorraine (mother of your silkies) goes broody VERY often, and so does her mother, so it is to be highly expected from the two silver silkies you have. The black one will be better.