i Register
In some senses, dicky-bird is marked as informal, British. Watch for register when choosing this word.
noun
A small bird.
The Swan and the Dickey-bird: A Fable.
Simple Simon went a hunting, He thought he could not fail, For to catch a Dickie Bird, For he’d got a little salt to put upon his tail.
A word; a brief chat.
We've not heard a dicky-bird about anything relating to his birthday.
A small thing.
I peeked into the cellar but there was nothing there. Not a dicky-bird.