I had a housefull in Canada, four flight cages in the basement and 2 bedrooms of breeder cages upstairs, until we had kids.I used to raise birds in my basement in Detroit. I made more money on the parakeets then anything else and I combined my love of yard sales to find cheep cages then I could sell them as a set. Made a good turnover on those. The cockatiels I hand fed and sold for $100.00 each or babies for $50. depending on color. parakeets went for $10. but I cranked those out. the finches were the least popular and the lovebirds were so so.