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Like many other galliforms, grouse are generally compact, heavily-built birds. True grouse (excluding meleagrids) range in length from 31 to 95 cm, and in weight from 0.3 to 6.5 kg. If the latter are counted, wild turkey toms are the largest tetraonids, attaining lengths of 130 cm (50 in) and weighing up to 10 kg (22 lb). Male grouse are significantly larger than females, and can be twice as heavy in the western capercaillie (the largest of the true grouse). Like

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