My friend's parrot has easy access to the pills in question and he told me that he once read somewhere that 4mg hydromorphone
oral = 10mg oxycodone
when taken by mouth = 40mg oxycodone oral dose when taken intranasally = 80 mg oxycodone oral dose when taken rectally... My friend's parrot is not sure if he is entirely correct with the math on that one but he told me that subjectively it seems to be true and generally plugs half or snorts one entire one and gets pretty fucked up. He thinks that hydromorphone has a high that can't be beat, plenty of tingling and euphoria
but still able to function when needed, you know, squawking and talking and swinging upside down on his cage. He even told me his owner hasn't figured out he's high most of the time.