The North Island brown kiwi is a flightless, nocturnal bird that lays the biggest egg relative to its body size. Marilyn Foehrenbach Q: I’ve read that ostriches lay the biggest eggs. But what ...

Read on for more detail about the five birds that lay their eggs in other birds’ nests that we have chosen to highlight: The brown-headed cowbird (Molothrus ater) is a small brood parasitic bird ...