There are tales about birds who push their hatchlings from the nest to teach them to fly.
I have never understood why these stories do not include the hatchlings returning on the wing to attack their parents. Are we to believe that such birds have sufficient language to communicate the dire necessity of this action? Is the moment of flight so transporting as to instantly forgive the machinations that led to its discovery? Or are these animals simply so stupid that they will forget this betrayal? Birdbrain.
Sorcerers have excellent memories. It is one of the required attributes.