I wonder how many of you know that the brown pelican is the only pelican that dives for its food. Other pelicans scoop up their meal often after gathering together and flapping their wings to bring a school of fish into the shallows. All pelicans tilt their head back to let out the water and swallow their food right away, no storing as some might think.
They are exceptionally buoyant due to the internal air sacks beneath their skin
and in their bones, which I think is pretty interesting.