Types of Waterfowl include: swans, geese, ducks, teals and mergansers. All these birds have webbed feet. Also included are the grebes that have lobed feet. There are over sixty species in the waterfowl group.
There are three types of swans living in North America. These are the largest waterfowl on the continent. Not included in the above mentioned is the Black Swan that is an exotic bird and is sometimes seen in local city parks or waterways.
The goose is the second largest bird found in North America. There are at least seven types of geese native to the continent. There are at least two farm geese that were introduced, the Graylag Goose and the Swan Goose, sometimes known as the Chinese Goose. The Bar-headed Goose is one of a few vagrant geese that visits the North American continent from time to time.
There are at least thirty-six types of ducks that are native or have been introduced and settled in North America. Some of these birds remain in local states and do not migrate, although they do slowly expand into adjacent regions. While other ducks fly into the northern regions of Canada and Alaska every spring to nest and then return to the southern states and into Mexico every winter.
The mergansers are the smallest group with only three types and lastly the grebes which are the smallest birds in the waterfowl group. There are seven types of grebes in North America.
Avibase - the world bird database This site provides the user with a complete list of bird species, broken down per country, or in the example of the US or Canada, per state and province. Here, bird species names are available in other languages, a great asset to be used as a translation of foreign bird names.
ABA - American Birding Association This site represents an organization that maintains official records of all birds species that have been proven to have been seen inside the perimeters of the North American Continent and the surrounding bodies of water. Regular revised versions are posted to keep the bird list current at all times. This is the list used by all serious birders over their lifetime. You may be aware of the movie called the "Big Year". It was with this list that all the competing birders used in an attempt to set a new record as to how many bird species that could be seen by an individual birder in one calendar year.
I hope you will take advantage of these suggested websites. I have used each of them, in one way or another, throughout the years in my quest to better identify and understand our fine feathered friends.