For reasons known only to them they have stolen children and left changelings in their place. On occasion, the Fae have taken the very old, maybe for their wisdom and experience needed by the young faeries. You may need protection from the Fae if you give offense by traipsing through their lands, crushing fawn and fauna.Cold iron is poison to fairies, charms of rowan and herbs work if worn outside your clothes and a protection talisman may let you pass freely.
Wings, were added in Victorian art, but are rare in folklore. Most believed faeries flew with magick, and on the backs of insects and birds. Many artists today show faeries with insect wings or butterfly wings.