(Apple Valley, MN)  —  The Minnesota Zoo is searching for its Eurasian eagle owl named Gladys.  The zoo reported Tuesday that Gladys flew off a tree during a routine training session earlier this month and hasn’t returned.  According to reports, staff have been tracking the owl around the zoo and believe she is likely to be within the zoo grounds.  Apple Valley residents are asked to contact the police if they spot a bird that looks like Gladys.