Yesterday morning she was her usual cheerful self and then became quieter as the day went on. By mid afternoon she took herself off to the coop and remained in there. She's only come out a couple of times today to eat and drink. I noticed some green poop in the coop. She's bright eyed and her comb looks good. When she's in the coop she's puffed up and I noticed the parting of feathers on her chest that my other broodies have had.
Could she really be broody when she's not in lay and is an older girl?