You know, it occurred to a Cindy Cabrera that if horses were going to have wings, why would they have feathers? Bat wings would be more logical. And aren't horses really big and heavy and ungainly for the air anyway? It ended up boiling down to this - a Kirk's dik-dik with bat wings, drawn in Cindy's sketchbook last summer. Repencilling by her, if that makes any sense.