<p>Great Blue Heron showing off for the camera .
</p>
Threat display,most of the time the display is enough to see of another Heron but as in this case if the other Heron is as big and tough then all hell breaks lose, when nether will back down it gets real nasty.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/11652987@N03">nigel</a> from vancouver, Canada
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/winnu/7292115026/">IMG_3396-001</a>