Hello all, this is my first time posting (forgive me if this has already been covered, I couldn't find a previous thread). I've only been keeping chickens for a year. I currently have 7 hens, raised from hatchlings. Today I brought home a new hen (she is 6 mos. old) and have her in a separate coop away from the others for a quarantine period. I filled her feeder with Purina Layena crumbles and added vitamins/electrolytes to her water. She has been drinking normally, but has not touched her food yet. I also placed a small dish of oyster shell in her coop. She ate the WHOLE dish of oyster shell. I asked the previous owner what she was previously being fed and she said cracked corn and table scraps (no chicken feed). Would it be normal for her to consume that much shell? Will it harm her to have eaten that much? Thank you for any insight!