The African Grey Congo is a medium size bird. They can range in size from 12-14" from their beak to their tail. The normal range for weight is between 400 and 650 grams. The baby parrot will have dark grey, even black eyes until they reach six months of age. After that, their eyes start to lighten, which is a good way to determine if a parrot is less than six months of age. From then until about two years, the eyes will be pale grey in color. When they reach adulthood, at approximately three years of age, they will have a light yellow coloring to their iris. Their beaks are solid black, and after about six to eight weeks of age, their tail feathers turn a beautiful bright red. Another way to determine a young Grey, is if they have they have dark grey tips to their feathers. Around their eyes, they are smooth and white. Most of their plumage is light grey, though some can be a bit darker. Their feet are a dark grey. If given the proper love and nutrition, these birds can live as long as 50-70 years.