My Uncle, John Allison Rammel, and his wife raised birds. They had parakeets, cock-a-dos and parrots.
They raised them as pets, but also sold some to pet shops for resale.
Below are some photos of some of his birds.
The first one is "Pedro" the family parrot. He actually outlived his owners.
Next is John's son, Hal Gustaf Rammel, with one of the many parakeets.
Last is a copy of their business card for their "Aviaries".