Silkies are "puffy" due to the hookless mutation. Birds pure for this gene have a feather defect that causes the feathers to grow out without the miniature barbs/hooks which on normal feather enable them to neatly "zip up" into a feather shape.
Take a normal feather and split it apart on the side.. then run your fingers over it and you can see it "zipping back into shape". That's the mini hooks in action. Silkie feathers just don't have that so their feathers pretty much puff out of control.
Take a normal feather and split it apart on the side.. then run your fingers over it and you can see it "zipping back into shape". That's the mini hooks in action. Silkie feathers just don't have that so their feathers pretty much puff out of control.