here is what I learned from the answers on pms from folk.
1. helps you catch them unless you have 3 foot arms, doesnt matter in my shed as the ceiling is quite low
2. summer season (ish) can be often if you don't let them hatch don'thave to worry about yb's this year, when it gets colder they loose interest
3. not really just feed them the right amount, ventilation, sunshine, dryness, water, watch they don't fly away and not know where to come home to
4.widowhood thingy is complicated, watch a video on u tube a wee indian bloke, natural way still not quite sure, free range in the shed but not good as the cocks are pretty like teenage boys and pester the hens, too many eggs and calcium deficiency can be a problem
Please anybody feel free to comment /correct me