The yellow coloured birds of North America are found in many different bird groups Probably, the yellow coloured birds of different bird species are more common, than birds of colour in other bird groups. Some are found in dry open areas, such as the Couch's Kingbird and the Cassin's Kingbird, whose habitat is sparse and dry.
Other examples, such as the Evening Grosbeak, Townsend's Warbler and the Hermit Warbler, favour the mixed forests as their homes.
Below is a list of yellow coloured birds, in part or in whole, where the colour yellow is the more prominent colour of its plumage.
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.