Good Call...lesson learned....glad you had a simple solution.
Wonder if she'll continues her evil habits and if your MIL will mind having that problem?
Oats can vary but are lower in protein than the 16% layer feed...better to give her some meat scraps or meal worms.
What's the protein percentage of the starter feed?
Tho if you have a great place to 'drop her off' that might be the easiest fastest solution.
I like to feed a flock...