a little bird

a little bird

An unknown person. Often used in the phrase "a little bird told me," in which the speaker does not want to reveal the source of the information. When I asked Carly how she knew about my new relationship, she just said that a little bird told her, but I'm going to need some specifics eventually!
See also: bird, little
References in classic literature ?
Tom Jones, when very young, had presented Sophia with a little bird, which he had taken from the nest, had nursed up, and taught to sing.