Why does Archie whisper rara Avis?

Archie whispers "rara avis" to convey a sense of secrecy and intimacy, suggesting that he is sharing a unique or special insight. The phrase, which translates to "rare bird" in Latin, symbolizes something extraordinary or uncommon, highlighting the significance of the information or experience he is referencing. This act of whispering also adds an element of intrigue, suggesting that what he is discussing is not meant for just anyone to hear.