I don’t think they attract rats! The rats and mice are already there, chicken feed is just a convenient assembly point :) I bring my chickens’ food in at night, pigeons and other small birds hoover up the rest. It’s not bigger rat magnet than people that feed wild birds and have food all over their gardens 24/7.
They are lovely lovely creatures with great personality. They can also be cruel and mercenary, they are omnivores and will eat mice!
Hens are actually quite noisy.
I’ve had wooden coops before, finally invested in an Egu Go Up with a run. Best thing ever.
Mine free range in a part of the garden during the day. If you value your garden, section a bit off for them.
If you hatch you must be prepared to dispatch! I have a 60% cockerel hatch rate every year. I use a brinsea mini-eco incubator and but hatching eggs online.
Also consider quail. Much quieter, gives eggs quickly. They don’t take though and fly so you need an enclosed aviary type setup.
There is always a fox around!! They try their luck most nights, the coop is on a standard run-through through our garden. We have cameras so see exactly what they’re up to.
When there was no eggs anywhere during the early days of lockdown we had some!
Fresh eggs make the absolute best poached eggs.