1.The letter tells him that he is a wizard.

2.Hogwarts school

3.They are half man and half horse.

4.The horn has got magical powers.

5.They live for 100 years , then they catch fire and turn back into baby birds.

6.The tears if the phoenix are magical and can help people when they get hurt.

7.They have got the head , front legs and wings of an eagle, and the body and back legs of a horse

They have got sharp beaks and orange eyes.

8.Buckbeak is Harry's loyal friend.