Pied Billed Grebe
This little one was in small space of open water at a marina / harbour. It made it easier for me to locate him every time he resurfaced after diving in search of food. They can sink like a little submarine by squeezing all the air out of their feathers and out of their internal air sacs. Unlike other diving ducks they can regulate their buoyancy which is an advantage when fishing underwater, they can swim just under the surface or go deeper with little effort.
Pied Billed Grebe
This little one was in small space of open water at a marina / harbour. It made it easier for me to locate him every time he resurfaced after diving in search of food. They can sink like a little submarine by squeezing all the air out of their feathers and out of their internal air sacs. Unlike other diving ducks they can regulate their buoyancy which is an advantage when fishing underwater, they can swim just under the surface or go deeper with little effort.