Officials with the National Aviary in Pittsburgh, Pennsylvania, have been searching for a missing Steller’s Sea Eagle named Kodiak since Saturday after the bird escaped from the largest aviary in the United States.

Multiple sightings of Kodiak — or “Kody,” for short — have been reported since he mysteriously escaped the aviary over the weekend. The National Aviary said on Saturday a thick wire used to enclose the bird “had a gap in one area that was not there before,” according to a tweet, adding that “this is extremely unusual.”