Another bird we saw on our walk was this American Dipper.  

These amazing little birds dive underwater to find aquatic 

insects and small fish to eat!  

They have special clear membranes that cover 

their eyeballs underwater, so that they can find their prey.  

They also have special membranes that cover up their nostrils when diving, 

so they don't get water up their "nose"!  

They "swim" underwater using their wings like flippers, 

and their tail like a rudder! 

They can stand the icy cold water because they have enlarged oil glands, 

which produce oils, with which they "waterproof" their feathers!  

They also have a thick undercoat of down feathers!