Buller's Shearwater, Bay of Islands, New Zealand.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/19813842@N00">Richard Giddins</a> from London, UK
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/19813842@N00/3443027968/">Shearwater (sooty or otherwise)</a>