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The birds must be safe from predators AND from the older cranes who may return and claim this as their territory. The bottom of the pen is alligator-proofed with heavy wire screens. Electric fence wire discourages predators such as bobcats. At night, their caretakers lead the chicks into a top-netted area to protect them if older cranes come around to bully them. The top net is high enough so the chicks can still leap and jump. In 2008 a new gate was built. It allows them to escape to safety in stormy weather.
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