Tiny Little Eggs

For some reason we have a hen that is not keeping up with the others. I don't know which one it is and she doesn't do it all the time but about once a month she lays a tiny egg. This week she laid two in three days. They are cute and we really don't mind. I wonder if they hatched, would we get a tiny bird?
And even though it is April 1st, this is no April Fool's Joke!