Oft moved is the key. Chicken ****, when used in moderation is a very good thing. Now you're in the realm of chicken husbandry. I wish you the best. It's going to be a bumpy ride. Yep, you've crossed the line Jethro.The thick grass and shade (and likely the dog "litter") should keep my bug supply up pretty high, which the chickens will hopefully balance out.
Another question - with a smaller number of birds (2-4) and rotating the location fairly often, the chicken litter shouldn't be so thick it will burn up the grass, no? My father made that point and it's got me thinking, but I don't think a oft-moved coop would over-fertilize the yard.