The most well known of the fairy women both in Ireland and Scotland has to be the Bean Sidhe, the Banshee. In Ireland she is the ancestress of the old aristocratic families, the Irish clans. When any death or misfortune is about to occur in the family, she will be heard wailing her unearthly lament. It was considered something of a status symbol to have a banshee attached to your family! She is more often heard than seen, though if you do catch sight of her she may be combing her long hair with a silver comb. She is also known as the bean chaointe, the wailing woman, and also as badhbh chaointe. Badhbh is the Irish for a scald crow, but more interestingly it is the name of one of the Celtic war goddesses who would shriek over the battlefields in the form of a crow. In the Highlands of Scotland this type of banshee is known as the bean tighe, the fairy housekeeper, or in some places as the Glaistig Uaine, the Green Lady, who is often sighted in the rooms and the grounds of the old castles of the Scottish clans, keeping watch over everything. There is also the wilder type of banshee found in the remoter places. This type of banshee wanders through the woods and over the moors at dusk, luring travelers to their doom. The gruagach is the fairy woman who watches over the cattle fold at night and protects the goodness of the milk. On Skye, Tiree and other islands are to be found 'gruagach stones', stones with hollows in where libations of milk were poured as an offering to her. If this daily offering was neglected, the best cow of the fold would be found dead in the morning. The Book of Arran mentions such a gruagach who minded the cattle in the district of Kilmory. There are many stories of sidhe women who help households with spinning, housework, threshing corn and so on. However, if they are interfered with in any way, even by the offering of a present, they will never return again. Alexander Carmichael mentions the 'bean chaol a chot uaine 's na gruaige buidhe', the slender woman of the green kirtle and yellow hair, who can turn water into wine and weave spider's webs into plaide, and play sweet music on the fairy reed. We also find in Scotland the dreaded bean nighe, otherwise known as the Washer at the Ford. She may be seen at midnight washing the death shirt of someone about to die. Usually the person who meets her knows that it is his own fate that she foretells. As she washes she sings a dirge: "Se do leine, se do leine ga mi nigheadh" (It is your shirt, your shirt that I am washing). Many spirits of rivers and mountains in Scotland appear in the shape of an old hag, the Cailleach. The most famous is the Cailleach bheara who washes her clothes in the whirlpool of the Corryvreckan off Jura, and rides across the land in the form of the 'night mare'.