Here is a cool video, The Owl, from Emmanuel Ho (who isn't Secretly Canadian) for the Austin band I Love You But I've Chosen Darkness (who are). The video is a taut eye strain that is stealthily brought upon us by intertwining the sound with the anxious image mixed into the veiled plot of the Owl. This is a well executed piece as tension and empathy is built up in such a short period of time with the soundscape. Be sure to check out Emmanuel's other visual experiments on his site.
Another bird themed piece is from PSYOP for an IDent for Mtv HD, Crow. I really like the vein-like explosions of the branches against the white background as it leads the viewer into the expansive pulse of the unveiled landscape. But the best segment is the swarming particle formations of the birds that flare and flit like locusts as it eats into the barren sky. I just thought the comparison of these two pieces were interesting in their emotional effectiveness, using Flash and 3d animation, respectively, in the heightened state of sound and image.