An ostrich egg, for instance, can withstand about 120 pounds of pressure before breaking. Which bird egg is which? Here’s how to identify eggs by color and size. In a role reversal, the female ...

Learn when bluebirds nest and lay eggs. How Much Does an Ostrich Egg Weigh? Here's another one of the most amazing egg facts: a single ostrich egg can weigh as much as 5 pounds. Find out what to ...

Birds are found worldwide and in all habitats. The largest is the nine-foot-tall ostrich. The smallest is the two-inch-long bee hummingbird. Everything about the anatomy of a bird reflects its ...