At last the little mother was so wild with grief that she dashed into the hole and sat there in the doorway, right before his face. He could not get another egg without hurting her, and he was ashamed to do that.
This was as brave in the tiny creature as it would be for a human mother to throw herself before a fierce, hungry tiger. Do you think she did not care for her eggs?
IV
THE BABY BIRD
A baby bird, as you know, always comes out of an egg. And beautiful as these eggs are, they are most interesting when you think that each one holds a tiny bird.
Eggs are not all alike, of course. One the size of a bean is large enough to hold a hummingbird baby, till it is old enough to come out. But the young ostrich needs a shell nearly as big as your head. So there are all sizes of eggs to fit the different sizes of birds.
If you should break a fresh egg you would not see a bird, for it would not be formed at that time. After the egg is laid in its soft bed, it has to be kept warm for many days, and that is why the mother bird sits on her nest so quietly. She is keeping the eggs warm, so that the little ones will form and grow, till they are as big as the shells can hold.
While the mother is sitting her mate does all he can to help, though each species has its own way. The blue jay brings food to his mate, so that she need not leave the nest at all, and many others do so. But the kingbird father simply watches the nest to protect it while the mother goes for food. A redstart gets into the nest himself, to keep the eggs warm while his mate is gone, and a goldfinch coaxes his mate to go off with him for a lunch, leaving nest and eggs to take care of themselves.