He threw rocks at them, but could not hit a single egg.

But then he lifts up one and there is only a single egg.

The clutch size is a single egg for this species.

This sometimes may happen if several years passed without being able to lay a single egg.

They sat on their single egg and refused to move.

How many questions can you ask on a single egg?

A single egg is incubated by both parents for 45 days.

And sitting on top of all this food is a single fried egg.

A single white egg is laid during the first two weeks of June.

He held out a palm on which a single white egg now balanced upon its end.