Letty, who creates the marvellously evocative blog Poof - And It's Gone, commented on my blue birds yesterday. They are sewn from this pattern on Spool and they are a great pleasure to make.
Of course you could give them eyes or wings or any other details that seem right to you, but the only thing I've changed from the original pattern is to quilt their tails, which gives them better balance and a little more shape.
When I have two more I'll set them on a mobile of lichened branches.
They are particularly nice to hold if made of pure cotton and stuffed with wool.