Yes, but it takes some work to get them to say something.
It is for other birds to understand them and it is just how they talk to other birds when they talk to different birds officials
Yes, but they probably wont talk back.
No, they are not. But myna birds are.
they arent
you can teach specific birds like parrots parakeets cockatiels to talk like you. but trust me, its takes a while to train them to talk like humans
mind your buisness
Yes you can use brood as a verb to talk about birds incubating their eggs. But I think that is not common most people talk about birds sitting on eggs not brooding on eggs.
just go with it love birds :}
And Mynahs. . . . . . . . .
No. Most birds make sounds which communicate to other birds - for example warning sounds and songs to attract mates. Some birds (such as parrots and Mynas) can mimic human talking.
The birds and the bees
Yes, so do other birds.