Gerrit Vyn / Singing adult male Grashopper Sparrow (Ammodramus savannarum). Cimarron National Grassland, Kansas, USA, April.
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Gerrit Vyn / Adult male Lesser Prairie-chicken (Tympanachus pallidicinctus) on a lek. Cimarron National Grassland, Kansas, USA, April.
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Gerrit Vyn / Adult male Lesser Prairie-chicken (Tympanuchus pallidicinctus) on a lek. Cimarron National Grassland, Kansas, USA, April.
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Gerrit Vyn / Singing adult Cassin's Sparrow (Aimophila cassinii). Cimarron National Grassland, Kansas, USA, April.
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Gerrit Vyn / Adult Cassin's Sparrow (Aimophila cassinii). Cimarron National Grassland, Kansas, USA, April.
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Tim Fitzharris / Tallgrass prairie showing grasses and bushes, Tallgrass Prairie National Preserve, Kansas
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) field of cultivated blooms with mature seeds in farmer's field, evening, Kansas
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) field, close up of cultivated blooms with mature seeds in farmer's field, evening, Kansas
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Yva Momatiuk & John Eastcott / Field of rows of cultivated sunflowers with ripe seeds in farmer's field, evening, western Kansas
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Yva Momatiuk & John Eastcott / Field of cultivated sunflowers with ripe seeds, Kansas
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Tim Fitzharris / Tallgrass Prairie National Preserve, Kansas
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Tim Fitzharris / Arch in Monument Rocks National Landmark, Kansas
