Featured Bluebird brooch

The finest example I could find on eBay.
All contented with it and opinions about its origin are welcome

 

That's a swallow. They have symbolic meanings such as safe homecomings.

Debora

 

I wonder why they were so commonly enameled in blue

 

I wonder why they were so commonly enameled in blue

 

As the King of Siam said... Is a puzzlement.

Debora

 

They were a Thing, and the blue stood out on clothing. Victorians enameled and painted them on things too, often in white for the same reason.

 

That's a sweet bird, an' a simply Delicious color...Thanks!

 

Beautiful, I love it!
(I actually have a small swallow tattoo on the back of my left shoulder. Got it back in 1983. )

 

There is a blue swallow bird, native to southern and eastern Africa.
https://en.wikipedia.org/wiki/Blue_swallow

As others mentioned, though, it is probably just colored blue for aesthetics and visibility.

 

After Maeterlinck. The blue bird of happiness.