In the United States and Canada there are many birds colored primarily yellow and black. This is a common color pattern of several species of finches, tanagers, orioles, meadowlarks and warblers.

Why do birds lay blue eggs? Well, the blue color has biliverdin ... The eggs are usually blue but can also be other colors, such as yellow or green, and they always have brown spots.

Most are distinguished by striking colors and bright plumage of yellow, blue, scarlet, and green. These colors distinguish them as some of the world's most dramatic and attractive birds.