I'm new to chickens. I have a Polish Top Hat that is about 18 weeks old. (someone gave her to me so I'm not sure EXACTLY). She has recently started laying down in the dirt/leaves alot. Her pal, a Buff Orpington, is the same age and she is usually actively roaming when they are free ranging. Is this a sign that something is wrong or is it simply a sleepy chicken? My 9 year old son is concerned. Yes, she seems to be okay otherwise. Also, how do you tell if a top hat is getting ready to lay? She has no comb to use as a reference! Thanks!