Young birds (without feathers, it is better to domesticate themselves) seem to be only 35~50.

Larger ones range from 6 to 100.

There is also the Shunhe Street Market. You can go there by bus no.53. The price is similar.

I don't know what you mean by obedience.

The blackbird can't talk, but starling's quail brotherhood.

However, it is also good for blackbirds to imitate the calls of other birds, which may take 200~400.