Taken at Huntington Beach, CA's Bolsa Chica Ecological Reserve (website: http://www.bolsachica.org
) using the (2007) Pentax K10D/Sigma "Bigma" 50-500mm lens, (2008-2009) the Canon 40D/100-400 IS, and (2010) the Canon 7D with either the 100-400 IS or 500 f4, all mounted on a BushHawk shoulder mount.
Here's a photo of me at Bolsa Chica on July 5, 2008 behind the Canon 40D/100-400 IS/BushHawk rig taken by my good friend Ken Tyler, aka Mr. Zoom at the Fred Miranda Nature and Wildlife forum ( http://www.fredmiranda.com/forum/board/41
A rare-for-the-area juvenile Yellow-crowned Night Heron, January 5 2013.
The juvenile Yellow-crowned Night Heron alongside an adult Black-crowned Night Heron, January 5 2013. You can see the difference between the two species, particularly the heavier-looking, thicker bill on the Yellow-crowned.
An adult (in breeding plumage) Black-crowned Night Heron, January 5 2013.