Shapeshifts into horse to lure riders

Dunnie

It appears as a horse or a pony standing conveniently where a traveller wants one — often a farmer needing to fetch a midwife in a hurry, which is the version most often retold — submits to being saddled and ridden, and then dissolves, drops, or bolts, leaving the rider sitting in a bog, a ford, or the mud of the road. Local tradition attaches it to particular crags and to a specific district, and some accounts connect it with the ghost of a Border reiver who hid plunder in the rocks, which gives it a treasure-guarding aspect that sits loosely alongside the practical joking.

Colt Pixy

The eighteenth-century antiquarian record already has its method down: in Hampshire the name belonged to a spirit that took the shape of a horse, whickered — neighed — to catch the attention of real horses and their riders, and misled them into bogs.

Each-Uisge

It is said to be irresistibly beautiful, luring humans – especially children – to approach and mount it.

Cabyll-Ushtey

Its most distinctive trait beyond its equine form is shapeshifting: several sources describe it taking on the appearance of a handsome young man, a disguise that lets it approach potential victims without immediately betraying its true, dangerous nature.