Now is when raptor juveniles take to the Pittsburgh skies to learn to fly and hunt, while continually begging their parents for food.

More than 35 species of falcons roam the Earth’s skies at present. But there used to be at least three others. Here’s the story of the confirmed falcon species lost to the world forever.

The formerly endangered peregrine falcon produced a bumper crop of at least 23 juveniles this year in the Pittsburgh region.

If wide population distribution is a sure sign of an animal’s evolutionary success, then the falcon is a clear winner. The ...