multimetal tree with birds sculpture

Hello, Can someone please tell me if this mid-century modern? multi-metal tree with birds sculpture is Asian (Japanese), and if so, any idea as to which artist it might be attributed. NOTE: I didn't find a signature thus far, but that doesn't necessarily mean there isn't one! Any information or assistance with this query would be greatly appreciated! Thank you! David.

I'd be happier saying it was Japanese if the leaves were made of Jade or other semi precious stones, or it was sitting in a celadon or porcelain bowl. I just don't know. There are craft kits for such 'bonsai' trees so maybe it's one of them?