Black beak on a ringneck what does it mean?

Question

I just bought a Ringneck from a pet store yesterday I did not notice the beak till I searched the internet and I notice that all the ringnecks have red beaks mine has it all black please what does it mean? I gave him melons and grapes but it had no interest in then so I gave him seeds and millar spray is that okay will it die and I also noticed that he is small than most and not so green.

Answer 1

 The Africans have a Plum colored upper & Lower mandibles. Whereas their Indian Cousins have ligher red/orange color. African Ringnecks are exactly like their Indian Cousins when it comes to their diet. They love to eat. Feed  fresh fruits & Veggies daily as well as soak n cook mixes and they also have cooked brown rice & Pasta added. During the breeding season they get some hard boiled eggs every 3 days as well.