Silhouette of a raven (Corvus corax). Traced from http://www.fundraw.com/clipart/clip-art/00004596/Raven-Silhouette/
This is a completely free image Raven silhouette that you can download, post, and use for any purpose.
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.