Let me introduce you to "Before & After" questions — where you'll need both your trivia knowledge AND your word puzzle skills ...

Keep an eye out for vagrant clues as you tackle our avian-themed grid—and learn how you can apply a puzzling mindset in your birding, too.

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...