Tarbh Uisge

The tarbh uisge — the water bull — is the benign end of Scotland's water-beast spectrum. Unlike the each uisge and the kelpie, the horse-shaped killers of the same lochs, the water bull is not given to assaulting those who come upon it. The descriptions are consistent and strange: all black, without ears, with a coat of soft, velvety appearance; it is nocturnal, haunting lochans such as those under the Tarmachan mountains, and its call is likened not to a bull's bellow but to the crowing of a rooster.

Its traffic with the mortal world runs through cattle. The water bull leaves the loch by night to run with grazing herds, and calves born with short or half ears were held to be its offspring — and were often killed at once, to forestall the bad luck such uncanny stock could bring, a custom the compendia record alongside the belief itself. The Isle of Man keeps a cousin, the tarroo-ushtey, an ordinary-looking bull with glittering eyes and rounder ears that mingles with the herds, cannot be caught or tamed, and — never having harmed a person in any recorded story — contents itself with tearing up fencing. The Highland fairy cattle, the crodh mara, and the Welsh lake herds are the same idea told of cows, and this census keeps each of those kinds its own entry.

The water bull's benignity is the interesting fact about it. It shares habitat, nocturnal habit, and uncanny anatomy with the deadliest creatures in Scottish folklore, and yet the tradition never armed it; its whole recorded impact is genetic and proverbial, a strain of strangeness surfacing in the byre. Where the water horse is a story about trust betrayed, the water bull is a story about wildness adjacent — near the farm, in the herd, and never quite of it.

The paragraphs below are extrapolated; no source supports them.

The tarbh uisge reads as wildness without malice — a creature that wants nothing from people except proximity to their cattle, and whose eeriness is entirely in what it is rather than what it does. The temperament suggested is solitary, crepuscular, and indifferent: it neither courts nor avoids humanity, and the fear it inspired fell not on it but on its calves. A being whose only crime is heredity. Read from the beliefs around it, and marked as speculation.