The robins belong to the thrush family. They are all wonderful singers and some of the first birds heard in the early morning before sunrise. These birds can be found in the far north and all the way into Mexico. In Canada, everyone awaits the arrival of the American Robin in March, as it is considered one of the first signs of spring.
At one time or another, there have been three types of robins that have been recorded as seen in North America. The American Robin lives in all parts of the continent, even into Mexico, and is the most common. The other two are the Rufus-backed Robin and the White-throated Robin. This latter robin is now called the White-throated Thrush. These two robins are native to Mexico and Central America but have sometimes been seen in the extreme southerly states.
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.