Parrot Intelligence - Sequential Problem Solving (video 7/8)

Sequential problem solving to open a door with several mechanical locks. Cockatoo Smudge opens in correct order several locks with different opening devices. The final goal - opening the door - is subdivided into partial targets and these in turn into individual steps or actions that have to be solved consecutively. In short, the parrot must understand that the door can only be opened when all the locks are open and that this is only possible if they are unlocked in the correct order because each lock lock