A Pledge Drive special, this episode is a compilation that includes segments from 16 notable episodes of Nature that feature birds.

The show features some animal misfits.

A journalist makes a trip back to Central and South America to check-up on the progression of a sloth named Velcro.

Killer whales make their to the Arctic during the summer, so that they can hunt in the open-water expanse.

This trip to France featuring the unexpected flora and fauna of the country, both great and small. Journeying from the Pyrenees to the Alps, all around the mainland and further on to Corsica, it is the story of the wild side of France. Breathtaking photography reveals wolves, wild boar and even bears living among France’s many mountains, valleys and forests.

Source: PBS

A documentary about Gentoo penguins in the Antarctic in the vicinity of the post office there.

For centuries, owls have been fascinating hallmarks of children's stories and folk tales the world over. But what actually makes owls so special? Using the camera technology, computer graphics, x-rays and ultra microscopes available in the modern world, we can take a brand new look at owls in more detail than ever before. The real stories behind how they hunt, how their vision and hearing works, and how they fly so silently are influencing 21st century technology and design, from high-tech aircraft and submarines to innovative hearing aids.

Source: PBS

To truly understand the complexity of a wild orangutan society and the skills the orangutans have learned from their mothers in the wild, Ecologist Chris Morgan travels to a remote patch of forest also in Northern Sumatra, a peat swamp forest known as Suaq Balimbing. Working with a team of experienced researchers, he becomes completely immersed in this unique social band of wild orangs who use tools, share food, forage together, and create their own distinct culture.

Source: PBS

"The Nest" explores how birds carefully select their materials, and craft their homes for the all-important tasks of protecting their eggs and raising their young.

Source: PBS

"Location, Location, Location" shows animated blueprints and tiny cameras that chart the building plans and progress of beavers, tortoises, hummingbirds and woodrats, examining layouts and cross sections as they evaluate the technical specs of their structures.

"Animal Cities" explores how some animals find that living in the midst of huge colonies of their own kind is sometimes a matter of necessity and sometimes the most secure and rewarding housing arrangement.

Source: PBS

This is the story of a family of the recently discovered Yunnan snub-nosed monkeys living in the Himalayas.

In every animal's life, there comes a time when it must stand on its own two feet, so to speak, and face the world alone. For a few, this happens just moments after birth, with no life lessons from parents to help them, no time to hone their survival skills. Others have the advantage of home schooling under the watchful eye of a mentor or family member. But growing up is never easy, and finding food, avoiding predators and making friends does not always come naturally. These are the trials and tribulations of young animals all over the world as they prepare to leave home.

Source: PBS

One of the most overlooked ecosystems on the continent consists of a massive sea of sagebrush that stretches across 11 states in the American West. This spartan yet spectacular landscape supports more than 170 species of hardscrabble birds and mammals. Among those that have adapted to survive here are birds found nowhere else: greater sage-grouse that lead remarkable lives mostly hidden in the sage. But once each year, males emerge for days on end to strut and display as prospective mates for discriminating females, which mate with only one or two of them. Females must then raise their chicks on their own, with little food, water or shelter to sustain them, while plenty of predators wait for their smallest mistake. Today, they must also contend with wells and pipelines tapping the resources buried deep below. The sagebrush and the grouse carry on, but they're losing ground.

Source: PBS