Why does Hiss call them “Vultures” when most of them are animal mash-ups?

OOC : For a few reasons, actually. One is because all of her chimeras have bearded vulture heads (except for a rare few). Another is that to Hiss, “Vultures” sounds more intimidating than “Chimeras”. 

Though the ‘behind the scenes’ reason is actually because of the song that inspired me to give Hiss vulture-like minions in the first place, “Here Come The Vultures” by Delain.