Harpy concept drabble

A quick concept piece for this year's NaNoWriMo. I'm going to write about an underground rebellion movement which takes advantage of my kingdom's old harpy myths and the truth behind them. The harpies are gonna have masks, too, but I haven't planned them yet.

And in case you're going to say "but even if people made wings like that, they could not fly!" I say this first: the harpies in my story are descendants of old elemental druids and have the power to control air and a magical wood called windbranch, which they use for the skeleton of the wings.

There's much I still need to work out, but let's just assume it's gonna work, yes?