We have a two year old calico princess who has been laying soft eggs. Yesterday, the egg broke inside her, and she laid the shell separately and over time expelled the yolk and white. She seems very healthy other than this, is very active and showing no signs of stress. She lays 2-3 times per week, and has been laying soft shells occasionally since mid-spring. I've also noticed that she's lost feathers on her belly, and have seen other chickens "cleaning her." Occasionally she has loose stool but doesn't show signs of vent gleet other than her vent is a bit red. I've been keeping her clean and we switched to food with higher calcium content, and they always have oyster shells and sometimes crushed egg shells available. I'm concerned that this seems to be happening more often, as she regularly has egg white on her back end. When I wash her the water typically runs clear, the other four chickens are perfectly healthy. I've seen caltrate recommended, any tips on getting her to eat it? Any other ideas would be appreciated.