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Keywords:National Wildlife Refuge, Nebraska, North America, Sharp-tailed, Spring, Sturnella neglecta, Tympanuchus phasianellus, USA, Valentine, air, bird, birds, boomer, booming, breed, breeding, display, feather, feathers, grassland, grasslands, grouse, lek, mate, mating, meadowlark, neck, pinnated grouse, prairie, prairies, refuge, sacks, season, tall grass, western
