For migrating birds, Chicago can be a dangerous place. But scientists, architects and volunteers are now teaming up to make the city a leader in bird-friendly design. The story is told in WTTW's online series “Urban Nature.”

Experts in Chicago are working to save one of the world’s most endangered birds. 

In the early 1960s, bald eagles were nearly extinct in the lower 48 states. But government protections and conservation measures have had a huge impact on their numbers. “I think it’s an incredible success story,” said biologist Chris Anchor.

After 20 years in the fashion industry, Owen Deutsch wasn’t planning on getting back into photography. But then he discovered a new subject: birds.

Last month, ornithologist Pete Marra sat down with Chicago Tonight to discuss his book detailing outdoor cats’ impact on U.S. bird populations. It was an interview that stirred up emotions on all sides. 

For the fifth year, members of Shedd Aquarium's Animal Response Team participated in a rescue mission of endangered penguin chicks in South Africa. Learn about their work.

A Smithsonian ornithologist says outdoor cats are devastating bird populations.

Why are there so many long-eared owls showing up in Chicago this winter? Bird watchers call it an “irruption.”

There are many Christmas traditions, but one that is especially beloved by people who love birds is the annual Christmas Bird Count. Learn more.

Jay Shefsky takes a road trip with some birders, and they stumble on a pair of rare and endangered whooping cranes.  

In the mid-1980s, the Lincoln Park Zoo and Brookfield Zoo set up critical captive breeding populations of two bird species native to the Pacific Islands. A new report from the Center for Biological Diversity underscores the impact of such programs.

Two years ago, amateur photographer Josh Feeney spotted a nest of owls within a Cook County forest preserve. Since then, he's returned to the site to check on the rare species and recently found evidence of successful breeding.

Since 2003, a group called the Chicago Bird Collision Monitors has made it their mission to collect birds that have been killed or injured after striking buildings and other structures.

You don't have to be an expert birder or ecologist to enjoy songs and calls from native and foreign birds in Chicago this time of year. Here's what to listen for.

The long voyage of many migratory birds sometimes ends in Chicago. What one photographer is doing to raise awareness of window kill and light disorientation.

An estimated 3,000 birds die or get injured from colliding with Chicago buildings each year. A new photography exhibition at the Peggy Notebaert Nature Museum aims to bring awareness to the issue.