Information
{ Feral and wild horse herds are usually made up of several separate small bands who share a given territory. Bands are organized on a "harem model" in that they usually consist of one adult male and a group of females. Each band is led by a mare who is dominant in the hierarchy, called the "dominant mare," the "lead mare" or the "boss mare." The band contains additional mares, their foals, and immature horses of both sexes. There is usually a single "herd" or "lead" stallion, though occasionally a few less-dominant males may remain on the fringes of the group.
Bands are usually on the small side, as few as 3 to 35 animals. The makeup of bands shifts over time as young animals are driven out of the band they were born into and join other bands, or as young stallions challenge older males for dominance. }
{ Contrary to traditional portrayals of the herd stallion as the "ruler" of a "harem" of females, the actual leader of a wild or feral herd is the alpha or dominant mare, commonly known as the "boss mare" or "lead mare." She is usually one of the more mature animals, responsible for the overall safety of the herd, familiar with the terrain and resources available. She takes the lead when the herd travels, determines the best route, when to move from one place to another, and claims the right to drink first from watering holes and stake out the best location for grazing.
The edge of the herd is the domain of the herd stallion, who must fight off both predators and other males. When the herd travels, the stallion brings up the rear, watching for predators and driving straggling herd members on, keeping the group together. During mating season, stallions tend to act more aggressively, in order to keep the mares from straying off. However, most of the time, the stallion is fairly relaxed, spending much of his time "guarding" the herd not by herding the mares around, but by scent-marking manure piles and urination spots in order to make clear his position as herd stallion.
By living on the periphery of the herd, exposed to weather, predators, and challenges from other stallions, the herd stallion endures a somewhat vulnerable existence. He is exposed to more risks than any other herd member and can be replaced by a stronger successor at any time. Interestingly, a herd stallion will occasionally tolerate one young stallion to live at the edge of the herd, possibly as a sort of designated successor, even though the young horse will eventually gain mastery over the older stallion and claim the herd. }
