The most famous parrot with an incredible ability to memorize a large number of words and speech patterns is the African gray parrot (Psittacus erithacus), which is also known as the Jaco.
Parrots are very smart. They perform more complex and interesting tricks than dolphins in the dolphinarium. Nevertheless, these birds also perform tricks with mechanisms, understanding the principles of their work at the level of children. Due to the large number of neurons, neuroglia complexes and flexible intelligence, parrots are very easy to learn.
Parrots are able to remember and use the names of objects, distinguish colors, shapes, numbers. Therefore, parrots can distinguish objects of the same color, but different in shape and composition. They operate with the concept of a category: the same or different, more or less, etc.
In 2019, a parrot named Griffin completed a series of experiments in which he had to determine where nuts were hidden in cups based on which cups were empty. The bird has always been successful in choosing the cup with the nut, unless the researchers tried to make it play with a 50/50 chance.