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Greater prairie chicken
The greater prairie chicken or pinnated grouse (''Tympanuchus cupido''), sometimes called a boomer,〔Friederici, Peter (July 20, 1989). ("The Last Prairie Chickens" ), ''Chicago Reader''. Retrieved August 27, 2014.〕 is a large bird in the grouse family. This North American species was once abundant, but has become extremely rare and extirpated over much of its range due to habitat loss.〔 Conservation measures are underway to ensure the sustainability of existing small populations. One of the most famous aspects of these creatures is the mating ritual called booming.
==Description==
Adults of both sexes are medium to large chicken-like bird, stocky, with round-wings. They have short tails which are typically rounded and blue in color. Adult males have orange comb-like feathers over their eyes and dark, elongated head feathers that can be raised or lain along neck. They also possess a circular, un-feathered neck patch which can be inflated while displaying; this, like their comb feathers, is also orange. As with many other bird species, the adult females have shorter head feathers and also lack the male's yellow comb and orange neck patch.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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