hi,anyone got any tips please.i have 10 hybrid hens,4 @ 6months old,5 @ about 1 year old & 1 pol @ 20 weeks.got 1 egg today and this is not an isolated event.best i ever get is 4.breeds are warren,speckeldy and copper black,they free range,have loads of water and are kept scrupulously clean.can't find any eggs being laid out of coop.all have been with me for at least 4 weeks,most for 3 months now.they get layer pellets,a little corn for a treat and occasional vegetable scraps plus whatever they find free ranging.they all seem perfectly happy,usual pecking order and no sign of any pests or infections.i am very fond of my hens but cannot figure out why they don't lay better.any help appreciated.