The tiniest bird is the bee hummingbird.It is only a little more than 2inches (5centimeters)long.It weighs less than a dime!
The biggest bird is the ostrich.It is about 9feet (2.7meters)tall and weighs up to 345pounds (156kilograms).The ostrich cannot fly.One of the heaviest flying birds is the great bustard.It can weigh as much as 40pounds (18kilograms).
Where Do Birds Live?