Birds land, water or Both
Aquatic environments provide critical habitat to a wide variety of bird species . Some aquatic birds divide their time between aquatic and terrestrial environments, while others spend most of their lives in water, returning to land only to breed. Many familiar bird groups are aquatic, including gulls and penguins as well as recreationally important species such as ducks and geese.
Wading and Diving Birds Wading birds occupy shallow-water habitats in both fresh-water and saltwater environments. They have long, thin legs that allow them to walk through water easily while keeping the rest of their bodies dry. Some wading species find food by stirring the water with their feet; others use their beaks to filter food. Larger species with long legs and great height also possess long flexible necks that allow them to reach food below the water surface. Well-known wading species include flamingos, cranes, herons, storks, and egrets. Smaller birds include sandpipers and plovers.
Diving birds describe a broad group of species that occupy waters deeper than wading species. These birds dive, plunge, or swim after fish
Read more: http://www.waterencyclopedia.com/A-Bi/Birds-Aquatic.html#ixzz3ImwrchD5
taken fromhttp://www.waterencyclopedia.com/A-Bi/Birds-Aquatic.html :
Wading and Diving Birds Wading birds occupy shallow-water habitats in both fresh-water and saltwater environments. They have long, thin legs that allow them to walk through water easily while keeping the rest of their bodies dry. Some wading species find food by stirring the water with their feet; others use their beaks to filter food. Larger species with long legs and great height also possess long flexible necks that allow them to reach food below the water surface. Well-known wading species include flamingos, cranes, herons, storks, and egrets. Smaller birds include sandpipers and plovers.
Diving birds describe a broad group of species that occupy waters deeper than wading species. These birds dive, plunge, or swim after fish
Read more: http://www.waterencyclopedia.com/A-Bi/Birds-Aquatic.html#ixzz3ImwrchD5
taken fromhttp://www.waterencyclopedia.com/A-Bi/Birds-Aquatic.html :