Alright, I need an answer and FAST please?

Anyone read The Chronicles of Prydain by Lloyd Alexander? What are the genders of the wolves Brynach and Briavel? Are they both guys? I can't find anything anywhere online!!

I need help deciding whether or not to buy one or two wolf plushies for a certain someone's birthday...

EDIT: Well, that's not exactly true...I WILL only buy one...But I guess what I'm looking for is, are they guys (since I need a male wolf) and can they be separated? I do have an alternate if they aren't/can't...

THANK YOU!!