What do you call two birds in love?

The joke “What do you call two birds in love? Tweet-hearts!” is a playful pun combining elements of romance and bird behavior. The humor stems from the wordplay involving “tweet,” a sound typically associated with birds, and “sweethearts,” a term of endearment for romantic partners. By merging these words, the joke creates the term “tweet-hearts,” implying a pair of birds that are in love. This play on words is amusing because it anthropomorphizes birds, attributing human-like romantic emotions to them. The joke also capitalizes on the cuteness and endearing nature of birds, as well as the whimsical idea of animal romance, which adds to its light-hearted and charming appeal.