trees or rocks. Sometimes bison could be lured into a trap by a person covering himself with a bison skin and imitating the call of the animals. Before their adoption of guns, the Plains Indians hunted with spears, bows, and various forms of clubs. The use of horses by the Plains Indians made hunting (and warfare) much easier. With horses, the Plains Indians had the means and speed to stampede or overtake the bison. The Plains Indians reduced the length of their bows to three feet to accommodate their use on horseback. They continued to use bows and arrows after the introduction of firearms because guns took too long to reload and were too heavy. In the summer, many tribes gathered for hunting in one place. The main hunting seasons were fall, summer, and spring. In winter, adverse weather such as snow and blizzards made it more difficult to locate and hunt bison. Clothing Hides, with or without fur, provided material for much clothing. Most of the clothing consisted of the hides of buffalo and deer, as well as numerous species of birds and other small game. Plains moccasins tended to be constructed with soft braintanned hide on the vamps and tough rawhide for the soles. Men's moccasins tended to have flaps around the ankles, while women's had high tops, which could be pulled up in the winter and rolled down in the summer. Honored warriors and leaders earn the right to wear war bonnets, headdresses with feathers, often of golden or bald eagles. Society and culture Religion While there are some similarities among linguistic and regional groups, different tribes have their own cosmologies and world views. Some of these are animist in nature, with aspects of polytheism, while others tend more towards monotheism or panentheism. Prayer is a regular part of daily life, for regular individuals as well as spiritual leaders, alone and as part of group ceremonies. One of the most important gatherings for many of the Plains tribes is the yearly Sun Dance, an elaborate spiritual ceremony that involves personal sacrifice, multiple days of fasting and prayer for the good of loved ones and the benefit of the entire community. Certain people are considered to be wakan (Lakota: "holy"), and go through many years of training to become medicine men or women, entrusted with spiritual leadership roles in the community. The buffalo and eagle are particularly sacred