I Really think that passage was talking to a particular instance of a particular cultural stigma at that particular time. I really, Really doubt that it applies now. Unless, of course, they are ex-prostitues who've had their heads shaved as punishment.... even then...?
To have one's head closely cropped can be called "shorn". It applies to hair, not species. Hair is the 'head covering', imho.
But it's the men in charge who've made a big to-do over these very ambiguous verses, making them into dogmatic ritual. It seems to me that it has nothing at all to do with anything but their control.
bwdik?
~W