Thread:Sentry 616/@comment-27966940-20180302020131/@comment-27144409-20180302123015

From Vedran, "For realism's sake it might be too small still since the wings need to be strong enough to lift his own weight, but in regards to ruby I think they are around the bat faunus's size."

From SYUTK, "

Well, making them bigger won't necesarily make them capable of lifting 50+Kg and flying. That's one of the main problems a winged faunus will face: Humans are simply a lot heavier than birds. Hell, some birds are too heavy to fly, too.

Now, for gliding, they're good as they are."

TL:DR They are at sufficient size since we have yet to see a winged Faunus truly fly, but gliding is on the table.