What is A Little Bird Told Me?
1.
"I have it on good authority"
A little bird told me you've got a bit on the side in Spain.
2.
Someone told me, but I'm not telling you who it is
1)Me: "Mike and Erin got married!"
Casey: "I know. A little bird told me".
2) Parent: "A little bird told me that you have been smoking".
Child (embarassed): "Mother/Father!"
Parent: "Cigarettes are a waste of money just to be burned up!"
See