Mother Eagle is the main antagonist of Timon and Pumbaa episode To Kilimanjaro Bird.
When she is angry, Mother Eagle has a borderline-insane sounding voice. She is sweet to her Baby Earl, but she was mean to Timon because he stole her son's bowl of grubs. She can also be overly aggressive. That was seen when she wanted to kill Timon and Pumbaa with a club after Baby Earl jumped out of the nest and presumably got scratched.
Timon and Pumbaa visited Mount Kilimanjaro. They stumbled upon Baby Earl's feeding dish. Tempted by the tasty bugs in his dish, the two gobbled up the remains of the food, which made Mother Eagle mad. When she accused Timon for stealing Baby Earl's grubs, he told her that she needs proof. She produced plenty of proof, such as strands of hair, a footprint impression, fingerprints on Earl's bowl, witnesses, Timon's wallet, and a security photo that shows Timon running away with Earl's bowl of grubs, much to his discomfort. In order to keep her from turning them in to the authorities, Timon and Pumbaa volunteered to be Earl's babysitters while she flies to the lowlands to find more grubs. Before she left, Mother Eagle threatened to kill Timon and Pumbaa if anything bad happens to her son, such as a single scratch.
When she returned, she saw that Baby Earl is not with Timon and Pumbaa. Timon told Pumbaa to tell something and save them, but Pumbaa can't lie and always tells the truth. When she heard the truth, she was willing to kill the Timon and Pumbaa, but then she saw her son flying. She assumed that Timon and Pumbaa taught Baby Earl how to fly and repaid the duo by feeding them some of the grubs she brought from the lowlands.