A pair of whooping cranes walk through shallow marsh  looking for food  in 2011, near the Aransas Wildlife Refuge in Fulton. A reader shares that more needs to be done to protect he endangered whooping cranes in Texas..    Dec. 17, 2011, near the Aransas Wildlife Refuge in Fulton, Texas. Scientists are concerned a devastating drought could hurt the recovery of the 300 endangered whooping cranes that winter in Texas. (AP Photo/Pat Sullivan) Photo: Pat Sullivan, Associated Press / AP
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