i seen this screenshot

and as the Miss Thavel Stan (the book cover is also her!!😩)  & Wendigo nerd I am, I'm going to explain this.

Female deer commonly do not have antlers

although there are some species of deer that do have females with antlers, such as reindeers, as they have antlers no matter what gender.

and this screenshot from google says that miss thavel is a wendigo.

And in folklore, wendigos will have antlers no matter what gender

so in that case

yes, she can logically have antlers and be female. :)

TEEHEEEEEEEEEEEEEEEEE