I like pigeons, And I like to make homing pigeon for my house, is it good act or bad?

actually I love any kind of animal, I had some birds like Nightingale, White-eared bulbul and so many others, even snake mouse and so..., That time I was child, some one said, you not love them, they love to be free, not in cage and you slave them, after that I did not keep any kind of animal anymore (as you said pet), I don't have pet for a long times But know I see many people that have homing pigeon, they are free and they come back to their cage freely, or in other way the special kind of pigeon which known as dove or white dove or ring-neck dove with it's extremely calm character somehow seems that it can not stay alive in wild world. so what about keeping pigeon that they became homing pigeon actually I should say we training them to became homing pigeon, or others that need to human take care of them like dove? are this act known as slavery? Is it wrong? even though this is not good excuse to cage them either for homing pigeon and for other need to take care, but I searching for straight and clear answer and wise explanation are these slave? does it acceptable in Buddhism? This is virtuous act? how we can explain it that is either good or bad?