What pets can eggs be exchanged for?

Every Thursday night from 7: 00 to 9: 00, in the summer of July, at Tongfu Inn, on the line 15, I looked for the head of the criminal at the door and received the task of being a big chicken and Italy. Five eggs for a pet, and the pet gets instant results. It may be an angry young eagle, but it is attacking high and other attributes are not good. Used as a secondary pet, joint attack, young eagle, that is, ordinary eagle does not have particularly outstanding good attributes, so it is lucky to have skills above 95. The main attribute is defense, usually as a secondary pet. There is also a tiger, with a high G and an attack as the main attribute. If you are lucky, you can be a pet with 4 skills. To sum up, we can draw six kinds of pets at once: furious young eagle, young eagle, tiger, golden beetle with blood as the main attribute variation, and Millennium tree demon with defense as the main attribute.

You can't change it into a bird. It was taken out of the treasure chest and now it's gone. Eggs are exchanged for pets that help you fight monsters, not for riding pets.