Question

why do birds egg come in different colors say fast​

Answer 1

Answer:

The research team found that eggs are browner for birds nesting in cold climates with little sunlight. The need for this adaptation makes sense. Darker colors absorb and hold onto heat better than lighter colors, and this phenomenon — darker hues in colder habitats — has been found all over the animal kingdom.

Answer 2

One reason for the varying colors of eggs is obviously camouflage when they are in a nest potentially visible to predators. ... Another reason for pigmented eggs is to recognize parasitism via egg dumping by other bird species that have laid eggs into their nest in hopes that the host will raise their young.