Ma Beagle always bails out her sons by providing cakes or other goods with means of breaking out of prison hidden inside. She's far more competent then her children, but even then tends to fail because Scrooge McDuck and the nephews will always outwit the Beagle Boys.
An interesting note regarding Ma Beagle is that whenever she appeared in the first season, she was often the only Beagle to escape successfully. This trait notably seems to disappear in the later seasons. In the second season premiere, "Time is Money", it is implied that she was eventually arrested; when Big Time disguises himself as an elderly woman, Burger initially mistakes him for Ma, saying "She must've broke out of jail!" Additionally, two episodes in the show's later seasons, "The Bride Wore Stripes" and "New Gizmo-Kids on the Block", end with Ma Beagle going to jail along with her sons.
Media: DuckTales (Episode list) | Videography | Gladstone comic | Magazine | Video game (HD remake | Soundtrack) | Disney Comics | DuckTales 2 | The Quest for Gold | DuckTales the Movie: Treasure of the Lost Lamp | Raw Toonage | Boom! Studios comic | Scrooge's Loot
Heroes and Allies: Scrooge McDuck | Huey, Dewey and Louie | Launchpad McQuack | Webby Vanderquack | Betina Beakley | Duckworth | Gyro Gearloose | Doofus Drake | Fenton Crackshell | Donald Duck | Bubba the Cave Duck | Tootsie the Triceratops | Gene the Genie | Glittering Goldie | Admiral Grimmitz | Duchess of Swansylvania
Villains: Beagle Boys (Big Time, Burger, Bouncer, Baggy, Bankjob, Bugle, and Babyface) | Ma Beagle | Flintheart Glomgold | Magica De Spell | Poe De Spell | El Capitan | Merlock the Magician | Dijon | Cinnamon Teal | Dracula Duck | Armstrong
Organizations: Junior Woodchucks