When 136 Bird Species Show Up at a Feeder, Which One Wins?

"In the study, 136 bird species were each given ability scores (given below each name) based on FeederWatch data about their dominance relative to other species. The higher a bird’s score, the more swagger it has at the feeder. Graphic by Jillian Ditner, Bartels Science Illustrator. From the Winte"