I will say that my Silkie girls are WIERD... I have often thought before that that they may be ill but usually they are looking for extra material to utilise for their nesting... My two adult Silkie females are both broody and laying on eggs as I write this... I have observed strange behaviour with both of them - very different at times from each other and I usually DO HAVE to lift them both from their respective eggs, otherwise I am sure that when they go into their trance like state they would not leave the nest to eat nor drink!
Once I move them away from their eggs they eat, drink and pass a horrendous smelling poop - ugh! The pleasures of owning broody Silkie girls = they also race around flapping their wings, shrieking out loud and then they settle back down to the task in hand.... this is a twice daily event - I always know when I go into their respective accommodation(s) that they have pooped - the smell permeates a wide area.
Maman also scratches around and her eggs fly in all directions, her head swivels around and she will destroy any other nests she gets access to!
Silkies are unnaturally natural!
Hope all goes well!
Suzie