a little bird told me

US /ə ˈlɪt.əl bɜrd toʊld mi/
UK /ə ˈlɪt.əl bɜrd toʊld mi/
"a little bird told me" picture
1.

un pajarito me lo dijo, una fuente secreta

used to say that you are not going to say who told you something

:
How did you know it was my birthday? Well, a little bird told me!
¿Cómo sabías que era mi cumpleaños? Bueno, ¡un pajarito me lo dijo!
I heard you're getting a promotion. A little bird told me.
Escuché que te van a ascender. Un pajarito me lo dijo.