examples of birds 
There are more than 9,000 species of birds scattered around the world.
Web-footed bird with a lower jaw featuring an extensible pouch for catching fish.
Widespread wading bird found in shallow waters and marshes, mostly piscivorous, with a neck that folds into an S when it is at rest.
Piscivorous marine bird living in colonies in the Southern hemisphere; it has webbed feet and wings that have evolved into fins.
Wading bird found in marshes and fields; two species are threatened with extinction.