There are two types of magpies found in North America. Both species are found on the western coast and into the central regions of the continent. The Black-billed Magpie is the most common and abundant of the two and lives in the northern areas and as far east as northern Ontario. The Yellow-billed Magpie can be found in the western areas of California.
The magpies have adapted to people and can be found in all the towns and cities in the west. These non-migratory birds are quite hardy and can be found in towns like Jasper, Alberta, even throughout winter. They are recognized by their long tail feathers and loud calls and they do not go unnoticed.
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.