It amuses me that a bird that tries so hard not to be seen has a call that can be heard from so far away. The bittern has a distinctive ooomm-ka-chooom call that is one of my favorite sounds of the marsh, it reminds me more of a gurgling swamp than a bird. In this picture it has spread its throat out, sending out its call across the marsh.
📷: Canon 20D | Canon 500mm f/4 | Canon 1.4X
🗓️: May 10, 2009
Boolie 