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From tools for fishing to built-in filters, these six birds have some of the most unusual beak designs in the animal kingdom. Toucans possess the largest bird bills at 7.5 inches, used for ...

Once a male bird has successfully set up a home, he can begin attracting females. In most bird species, males are better ...

One of the most common sparrows ... displaying a rich reddish-brown hue during the breeding season. A striking bird with speckled brown plumage and a pale yellow throat. It thrives in rocky ...

These colors distinguish them as some of the world's most dramatic and attractive birds. Males often sport ... Males put their bright colors and unusual ornaments to good use when they display ...

The passenger pigeon was once the most numerous bird in the world. In the mid-1800s, billions of these birds were flying over the forests of eastern North America. Yet in just half a century, they’d ...