Might be a good idea to start smaller and see what the demand will be.
You could increase the amount of birds any time by hatching your own if everything turned out to your satisfaction. But having to feed and care for 100 birds is no minor task and the bills might pile up quickly.
You could increase the amount of birds any time by hatching your own if everything turned out to your satisfaction. But having to feed and care for 100 birds is no minor task and the bills might pile up quickly.