While relatively small and plain-looking, black-headed duck females possess plenty of guts. Rather than building a nest, they will instead lay their eggs in the nests of other birds. They target ...

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 ...

Birds lay eggs of surprising variety, and scientists have long wondered why. Could it be that certain shapes protect eggs from shattering? Or perhaps allow them to fit snugly in a nest?

You may well know that birds lay eggs. But did you know that they don't just lay their eggs in nests? These birds are called maleo fowl and they lay their eggs in the sand and they dig great big ...