Watch the March 15, 2016 full episode of "Chicago Tonight."

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.

Chicago-based hotel and hospitality company Hyatt Hotels Corporation has partnered with online education provider Khan Academy to bring a free and innovative digital learning challenge to Chicago. Joining us to talk about the program is Mark Hoplamazian, CEO and President of Hyatt.

The Greater Metropolitan Missionary Baptist Church at 59th Street and Wabash Avenue is the polling place for the 12th Precinct of the 20th Ward. It's in the Washington Park neighborhood, a largely low-income, African-American community. It's also within Democratic State Rep. Ken Dunkin's 5th Legislative District.

It’s the eve of a particularly heated primary election for a number of heavily contested races, from the increasingly close presidential races in both parties to the high-profile, money-saturated slugfest for Cook County state's attorney.

We take a peek inside the mind – and bedroom – of Vincent Van Gogh in the latest exhibit at the Art Institute of Chicago. 

Watch the March 14, 2016 full episode of "Chicago Tonight."

Outspoken Chicago activist Jedidiah Brown says he's received death threats and has been put on temporary leave from his job following Donald Trump's canceled rally at UIC Pavilion on Friday night, an event Brown says was racially charged and dangerous.

This year marks the 100th anniversary of the start of the Great Migration, but a new report from the Chicago Urban League says many blacks still live in racially segregated and impoverished neighborhoods.

The New York-based architects were in town last week to talk about their design style and projects. Inevitably, their plans for the Obama library came up.

This week's primary isn't the only race in town. Amateur runners can apply for a spot in the 39th annual Chicago Marathon starting at 10 a.m. Tuesday.

A final look at the stakes in Tuesday’s primary election in Illinois. Chicago Public Schools sues its former CEO and SUPES Academy for $65 million. And former Bears head coach Lovie Smith is back in Illinois to coach football. Joel Weisman and his guests discuss these stories and more in this week’s show.

Here’s another reason to consider giving your cellphone a rest: Compulsively checking such devices as a way to cope with uncomfortable situations has been linked to anxiety and depression in college-age students.

Maku the eastern black rhino is one of less than 1,000 such animals living on Earth due to decades of poaching. Today he turns 30.

Update: Confirmed overnight, Nichols was found safe early Friday morning.