It's kind of hard to tell at the hatchling stage, unless he's a fledgling you probably won't find out till then. You can probably tell it he is a hawk, falcon, eagle, etc by the shape of his beak though. As far as cooking the meat, I don't suggest you take to my advice 100% because I am no expert on this type of thing, but if I were in your postion I would not cook the meat. They are fed raw for in the wild, and he has probably already been fed by his parents..so cooked meat may create problems for him in the future. If there's any hope of him going back in the wild he will have to know what raw meat tastes like.

Some pics of red-tailed hawk babies-
http://www.kgw.com/lifestyle/stories...0.2adfbeb0.jpg