Some names of birds are bald eagle, gadwall, killdeer, laughing gull and mallard. Their scientific names are haliaeetus leucocephalus, anas strepera, charadrius vociferus, leucophaeus atricilla and anas platyrhynchos respectively.
Killdeer, which is a North American plover, is normally found near a water source. It has a distinctive gait with long legs. America's national bird is the bald eagle. Known for stealing the catch of other animals, the bald eagle, which is not bald, has a white tail and snowy white head. Mallards have a yellow bill and a green head. Commonly found in various parts of the Northern Hemisphere including North America, mallards are considered the most populous type of duck on Earth.