You can see a video of me here in Mickaboo`s April 2021 adoption fair: https://www.youtube.com/watch?v=MnN4nZJSbAk
In nature, parakeets (budgerigars) live in large flocks. A single bird in a cage spends much of his/her life being lonely because humans have things they must do that take them away. We therefore will only adopt a single parakeet to a household if there is already at least one parakeet living there. Otherwise, parakeets must be adopted in groups of two or more.