What Bird Lays the Largest Eggs?

Usually, the larger the birds the larger the egg it lays. But the size of a birds. It really depends on the amount of food necessary to nourish the growing germ up to the point of hatching.

Birds that are able to take care of themselves a short time after hatching come from large eggs. In these eggs there was enough food yolk to bring them to a high state of development before they were hatched.

Birds that are born blind and helpless come from relatively small eggs, in which there was not enough food to develop them to the point of self-support at birth. Not all eggs are shaped like hen’s eggs.

Some birds lay cylindrical, spherical, and even pear-shaped eggs. The eggs of some birds nesting in high, exposed places are shaped in such a way that there is little danger of their rolling and breaking.

When it comes to size of eggs, the ostrich is the champion. Ostrich eggs measure 15 to 17 centimeters long and 13 to 15 centimeters across. It has been found that an ostrich egg shell will hold from 12 to 18 hens eggs!

While the ostrich lays the largest eggs of any birds living today, there have been birds that would have considered an ostrich egg tiny! The extinct elephant birds, or roc, of madagascar, laid the largest eggs ever known.

Complete shells of these eggs have been found and measured . Some of them are 33 centimeters long and 23 to 26 centimeters in diameter. The shell of these eggs will hold about eight liters, and that’s six time as much as an ostrich egg will hold, and nearly 150 times as much as a hen’s egg will hold! The smallest eggs are produced by hummingbirds. Some species of hummingbirds lay eggs that are only six millimeters in length.  

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