i got my 2 chickens from a friend who had 5, she had 5 eggs a day so we know they both layed for her. i've had them since saturday but only one chicken is laying, how do i get the other one to lay? they only have one nest box would this be why? both chickens combs look similar in colour very red. should i remove the one egg i am getting straight away or leave it to encourage the second hen?