From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

W hile there are over 11,000 bird species in the world, only a select few grow to large sizes. Birds are measured by weight and wing span, so the bird with the biggest wingspan may not necessarily ...

While no bird of prey stands taller than the average adult, the wingspan of the biggest raptors most certainly does. Wingspan, or the point from one wing tip to the other, is what makes these ...

The wandering albatross has the largest wingspan of any living bird species. They typically measure around 8 to 11 feet, but the largest ever recorded was closer to 12 feet.

Andean Condor: Known for its impressive wingspan of up to 10.5 feet, it is one of the largest flying birds in the world, native to South America.

The biggest bird in the world weighs between 220 and 350 pounds, but it doesn't even come close to the largest bird who ever lived. Here's who it is.

The biggest bird in the world weighs between 220 and 350 pounds, but it doesn't even come close to the largest bird who ever lived. Here's who it is.

The wandering albatross, the world’s largest living bird, has a wingspan of 3.5 meters, and the giant, extinct South American condor, Argentavis magnificens, was right around 6 meters.

Whooping crane. At 5 feet tall, the whooping is crane is the tallest bird in North America when standing. They can weigh up to 17 pounds and have a wingspan of 7.5 feet, All About Birds states ...