User blog comment:Commdor/A new alien race in ME: Conviction?/@comment-1503545-20110919010915

In the last two comic panes, those unidentified aliens have to be different races. Look at the contours on their face/head and compare them. And as for the leg & foot, it does look Avian, minus the feathers. You can make out talons on the foot, so maybe the Raloi can be more bat like than bird. (Or maybe even like how chickens feet are, less if any feathers toward the legs.)