That has to be it. But I hate a cross beak, and generally look carefully at alignment. Dang it, I suppose I will eventually have to put her down. Sometimes chickens are hard.
I bought three chicks for a broody hen. I picked the ones I wanted out of a bin, and I am sure that I looked closely at them. They are several weeks old now, close to 6 weeks. Today, I see what I think is a stick out of the side of her mouth, but now I think is a cross beak. I didn't catch her...