The phrase represents a commercial offering: the availability of a specific parrot species, Amazona aestiva, distinguished by its characteristic blue marking on its forehead, for purchase. It directly indicates an intent to sell this particular bird to prospective owners.
The interest in acquiring such a bird reflects various desires, from companionship and intellectual stimulation to an appreciation for exotic avian species. Historically, the keeping of parrots has been associated with status and wealth. More recently, ethical considerations surrounding the trade and care of these intelligent animals have become increasingly prominent.