Mustangs | Spirit of the Shrinking West, National Geographic Magazine: Mares and Foals Watchful in Wild Horse Herd

Storm clouds brew over a South Dakota prairie as a wary foal stands close to his mother. She watches out for his protection as the bond between a mare and her offspring is quite close until he is weaned.  Small groups, families or bands of horses with young foals, graze nearby.

The Gila herd is of Spanish origin and came to North America with the Conquistadors.

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