What color are the eggs?

The answer is as follows: There are about 9,000 species of birds in the world, and their eggs are green, blue, gray and purple in addition to white, milky white, yellow and brown. In addition, many birds have spots and patterns of different sizes on their eggs.

For example, the eggshells of Hongyan are yellow and red; The eggshells of egrets are emerald green; The eggshell of the short-winged tree warbler is ruby; The eggshells of magpies and crows are beautiful sky blue; The quail egg shell is brown with dark brown spots; Nighthawk's eggshells are like marble moire, all kinds.