What would happen if the pouter pigeon and the fantail pigeon and the fantail pigeon were selectively bred?

The offspring population will contains the desirable characteristics of both fantail pigeon and the fantail pigeon.

Explanation: The selective breeding is the planned breeding between two organism of the population with desirable properties to result in the new traits from both parents in the single next generation offspring. In this case, the offspring of the pouter pigeon and the fantail pigeon will contain the traits of pouter and it also has fantail. The new generation will be selective breed an it is from the breeding of intra specie organism. If breeding is inter specie than the offspring is most probably infertile.