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The Greater Sage Grouse is the largest grouse species in North America. But unfortunately, this bird also suffered a setback. The main threat to their existence is habitat loss. Male birds are twice the size of females and on average weigh around 2.7 kg. Women are only about 1.4 kg in weight. In addition, the color of this bird is very different. Men are grayish in the upper part of the body with white breasts and a dark throat. There are also two yellow bags on the neck that can be raised and lowered. Female birds are much more colorful. He is usually grayish brown, his throat and stomach are brown in color. Both of these birds have different sexes. Their tails are long and pointed, and more interestingly, the legs of this bird are covered with fur to the toes.