It is about 22 weeks old and has been in with a rooster for at least the last month. They co-habit fine and it doesn't hardly ever make a peep. I also have never seen it in the nesting box. It's tail feathers really boggle me as they don't look like the other Blue Orpington pullets I have in the same coop and the same age. It is also GIGANTIC! It now stands taller than my 9 month old Birchen Marans rooster and also weighs more. Any ideas if it is male or female???