Twitter Icons

Does anybody know if there are available twitter icons of the bird? I've seen a few with the "t" or the regular logo but I'd like to have some for the bird. I ended up having to find a picture of it and making one of my own, I'm using it on my personal branding site.

There was this article last month:

20 Twitter Icons for Websites

Its a German site. But you will recognize the images :P

Awesome icons. I like it :cool: