Monty (LSC2) - Private adoption
Luka (GCC) - Given by a friend who had "accidentally" bred.
Yuki (Budgie) - Dropped off for "birdie sitting"; owner never reclaimed him.
Aphrodite (Budgie, RIP) - Can't recall the exact circumstances.
Zeus ('Tiel, RIP) - Friend of a friend begged me to take; originally a gift to her kid

My flock: Monty (Eleanora/medium sulphur crested cockatoo), Benjamin Button (European Starling).