I would call it a mutt. If one parent was delaware then its at least half delaware could be just an expression of some recent crossing genes and the parents were not full delawares either or look for the mailman roo.That looks a lot like my New Hampshire chicks. Could be a cross, or she will get more solid red as she grows.
All in all it does look very NH ish but Dels are essentially half hamps Even with Bonhams lines of birds you get strange things crop up from time to time. Genetics is complicated stuff.