It does matter if they are given flying experience prior to being gradually clipped back. As a small scale breeder of Congo African Greys, I have done extensive research into which breeding and rearing practices will produce birds that retain the best of their wild counterparts, and at the same time, can live happily in a domestic environment. My approach to breeding and rearing is grounded in two distinct factors. Second, is to proceed with an ever-present awareness that, by breeding Greys and keeping them as companions, we are engaged in the process of domesticating them. Greys in the wild have evolved into creatures of incredible intelligence, with instincts and a certain set of skills necessary to survival.
Several factors point to the degree of complexity they are able to attain in their personalities.
Further, we know from our breeding efforts that there are optimal times in a chick's life for learning certain developmental tasks, such as exercising his curiosity as it leads him to explore. They are capable of developing and maintaining several ongoing relationships on different levels with all members of the family flock. The birds establish these differing relationships based on the cues they receive from each individual. Greys demonstrate a wide range of emotions and desires, such as the ability to feel loss, boredom, irritation, happiness and contentment. Moreover, they are capable of learning our language and using it appropriately.