Birds are fascinating creatures of the animal kingdom, with four species of hummingbirds topping the list of the world’s ...

Arizona's state bird fends for itself against predators in the desert, making its home in prickly plants. Here's what to know ...

Weebill, with short, stubby, and pale beak, is one of world's smallest birds. It can grow up to 8-9 cm long and weighs around 6 grams ...

The bee hummingbird is the world's smallest bird. It is about 2.25 inches long and weighs less than 2 grams, which is about the same as a cashew nut ...

In pursuit of the world’s smallest bird, we’ve come to the backyard of a flamingo pink house in Palpite, Cuba. Ornithologist Christopher Clark has a car full of gear to unload: cameras ...

The smallest bird in the grouse family, the white-tailed ptarmigan is also one of the few animals that lives on alpine mountaintops throughout its entire life. Every part of this ptarmigan is adapted ...