Has she only laid the one egg so far ? Or have you been collecting others as well.
I put golfballs in the nest a few weeks ago to try and make her go broody, so now she layed one of her own and is sitting on 5 golfballs - no i havnt collected any eggs. I am thinking of finding some eggs to buy and get posted to then sit under her. Lol all the golfballs are hot to touch, mind you i would love a baby golfball but i dont think its gonna happen