On Super Bowl Sunday, millions of people watching the big game will see a Budweiser commercial that portrays an adorable friendship between a bald eagle and a horse as they grow up together on a scenic farm. His appearances in South Philly began two seasons ago, when he replaced longtime predecessor Challenger, the first bald eagle ever trained to free-fly over stadium events. Training a bald eagle is a delicate process. When Budweiser called AEF over the summer to inquire about Lincoln's availability for a Super Bowl ad, Hall said she jumped at the opportunity. AEF has seen an increase in the number of birds referred to its sanctuary as bald eagle populations continue to rebound.