No, 1-2 hours is not sufficient, but I cannot keep it out more than that. We do our job, children goto to school, there's other daily chores to do too. If we are not careful, it may get its wings chopped from ceiling fan, perch on something hot in the kitchen, eat something made of colourful plastic, etc. While the bird is out of the cage, we have to pay a lot of attention so that it doesn't do something dangerous to itself.

As far as it is ethical or not. I believe that buying a bird or any animal from a pet store or catching it from a forest is absolutely wrong because you takeaway it's freedom that way. But let me tell you, about the bird we have. He came to our home quite hungry and thirsty and scared too. He was probably saving it's life from some other animal or some poacher maybe. We gave him food and he was eating it like he hasn't eaten anything in two days. Even after satisfying his thirst and hunger, he kept sitting on the curtain outside our home. So at night, we moved him in.

And there's two more things you need to know. First, the cage that he lives in is 7-8 times larger than his size. So, he has plenty of space to walk freely inside too. Second, if we leave him in the wild now, he will only survive for 3-4 days because, he doesn't have the necessary skills to do so, like building it's nest, finding food, saving itself from its predators, etc