Originally posted by Zoopedia
It's quite possible that fairies are simply butterflies or moths that look unusual when the light shines on them in a certain way. The human mind is
programmed to pick up familiar images and it's possible that's all they are.
That may explain "victorian" type faeries, like Tinkerbell, but most Faeries are described as nothing like those.
The Red Cap or Faer Derig is a type of faerie who looks like a small man with a blood red hat who likes to eat raw meat. He will content himself with
just drinking the blood of his victim if disturbed.
The Bogle is a creature that seems to have no physical form but appears as a taunting voice from somewhere just out sight.
The Sluagh are faeries that are alternately described as lost souls of unbaptized humans or faeries who temp humans into committing evil acts.
The Tuatha De Dannan (Loosely translated means " People of Knowledge") were a race of people associated with faeries in Ireland. They were one of
the "first" peoples of the island and, according to legend, had advanced cybernetics and medical technology. Legend also says that they arrived in
Irland "upon great storm clouds".
The Ghillie Dhu is a "wild man" faerie that is alternately described as being dressed in woven leaves or with matted hair covering his body. He is
said to be kind to children but very shy around adults. As an interesting bit of etymology, the modern "Ghillie suit" worn by snipers, is named for
these faeries.
As you can see, Faeries are many and varied. In fact, in Irish folklore alone, one can find descriptions of things that sound like Norse aliens,
Bigfoot, Ghosts or shadow people and even chupacabras.
The Victorian Faerie is a quite recent invention mostly popularized by Disney. Those are rarely described before the mid 1800s.