This is an unusual and perhaps very rare photo of a large flock of birds near the runway at San Francisco International in April 2014. Boeing 747 of EVA Air Cargo.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/34076827@N00">Bill Larkins</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/34076827@N00/13882858715/">BIRDS</a>