I could be wrong on the age, its been so long ago, I was thinking they were around that age. They definitely had those feathers before we re homed them.
If you got her grown, good chance she is over two and not laying so great. People often get rid of them when past their prime and get new layers. You may not see anything until spring, with day light longer.
Lol, haven't heard it called that. Thats cute.
Silkies seems to be your best sitter. They continually go Broody. I believe they can handle a lot of eggs under them.