Scientists have developed artificial intelligence that can identify 200 species of birds from just a single photo, offering another way to quickly and cheaply monitor bird populations than the traditional in-person counts often used today. The technique, created by scientists at Duke University, uses deep learning, algorithms based on the way the human brain works. The researchers fed nearly 12,000 photos of birds into the computer program. The system analyzed the images, learning in-depth the physical traits of 200 species. The program was then able to examine a photo, determine the exact species, and explain how it came to that conclusion. It's a hooded warbler, and here are the features -- like its masked head and yellow belly -- that give it away," a Duke press release explained.