What is the world's largest bird and the smallest bird in the world?
The largest of the modern birds is the ostrich. The ostrich lives in the desert wasteland, reaching a height of about 3 meters, its neck is very long, its head is small, its mouth is flat, its wings are short, it cannot fly, and its legs are long and powerful. The color of the ostrich feathers is not pretty, the female is generally gray-brown, and the male has white feathers on the wings and tail. They feed on grasses, seeds, wild fruits, insects and molluscs. In the desert regions of Africa, the ostrich is trained to ride the sea, and its feathers can be used as ornaments. In addition, there are many countries that raise ostriches in large quantities because of its high meat value. Although the ostrich is very large, it is very timid. Whenever there is danger, the ostrich will bury its head in the sand, thinking that this is a safety defense. Of course, the ostrich's ability to escape is also very good, strong when it encounters predators, it will also run on strong legs, the speed can reach 60 kilometers per hour, and the running speed is definitely not slower than that of a horse.
When it comes to ostriches being the largest bird in the world, hummingbirds are the smallest birds in the world. Hummingbirds are the size of bees, no more than 5 centimeters in length, and weigh only about 2 grams. There are many kinds of hummingbirds, about 300 kinds, and its feathers are gorgeous, with more than a dozen colors such as black, green, and yellow. Hummingbirds make a metaphorical sound when they fly to collect honey, so they are called hummingbirds, and because of the bright colors of its feathers, they are also called "sacred birds", "stars", "forest goddesses", "flower crowns" and so on. Hummingbird wings can vibrate 50-70 times per second, flying speeds of up to 50 kilometers per hour, altitude of up to 5 kilometers, and a red-breasted hummingbird can fly more than 800 dry meters non-stop, and its heartbeat reaches 615 times per minute. Hummingbirds are mainly found in the forested areas of South and Central America.
