A fairy! I had an idea of how their wing structure could actually function, and I came up with an idea of long, thin, fin-shaped spines coming off of their vertabre. This version of faerie (or however you prefer to spell it... if there's a reason for the different spellings... like they all stand for different species of fairies, please educate me!) will be showing up in a story I plan to write in a few years... might take me a while to get to it... I have to finish the one I'm writing first.