Thank you all for the great insight and advice- follow up question: If my birds are allowed the run of the yard during the day, will they lay eggs all over the yard, or return to the coop to lay? If the yard, what can be done to stop/prevent this?
If the chickens are properly homed to the coop, most of them should return to the coop to lay. Assuming the birds you previously had are already accustomed to laying in the coop, they should continue to do so. For the new ones might be trickier since this is new to them and they're being attacked by the existing birds.