How have the eggs of parasitic birds evolved to reduce detection by host birds?

Step-by-step solution

Brood parasitism in birds is a fascinating example of parasitism in which the parasitic bird lays its eggs in the nest of its host and lets the host incubate them. During the course of evolution, the eggs of the parasitic bird have evolved to resemble the host’s egg in size and color to reduce the chances of the host bird detecting the foreign eggs and ejecting them from the nest. Many parasites have evolved to be host-specific (they can parasitise only a single species of host) in such a way that both host and the