I have one chicken that's been laying for a few months and always uses the same nesting box. Last week another one started to lay and uses the same box. (i have four boxes) Over the past three days, both eggs have been in the box together but each day it's a different nesting box. It's like they're trying them all on for size. Do they like to all use the same box? Either way is freaking adorable to see the two eggs in one nest!