PITTSBURGH -- A juvenile arctic peregrine falcon that was found on a downtown Pittsburgh balcony last week resumed its migratory journey south Thursday morning.

The rare bird was discovered by Zambrano construction manager John Moore on the 19th floor of a building on Fort Pitt Boulevard.

The falcon was migrating through the area when it became fatigued and got stuck on the downtown balcony.

Workers contacted the Pennsylvania Game Commission and the National Aviary on the North Side, which promptly came to examine the bird.

Undernourished and dehydrated, the bird was brought by Aviary officials to the Animal Rescue League's Wildlife Rehabilitation Center in the Rosedale section of Penn Hills.

After staying at the center for a week and receiving food, fluids and much-needed rest, the falcon was judged physically fit to continue its migratory journey south.

Arctic peregrine falcons are medium-sized falcons, about 14-18 inches long and weighing about 2 pounds, with long, narrow wings that commonly span 43 inches.