I don't know how it happened. but one of my pullets has injured her beak somehow. I have pics... This is one side
This is the other side
I have her in the chicken hospital in the garage, with some food and water. The vet next door gave me some oral antibiotics to give her a drop a day for 3 or 4 days. I have no idea how this happened. Could it be from establishing the pecking order?

This is the other side

I have her in the chicken hospital in the garage, with some food and water. The vet next door gave me some oral antibiotics to give her a drop a day for 3 or 4 days. I have no idea how this happened. Could it be from establishing the pecking order?