link: https://www.sciencedaily.com/releases/2019/03/190326081337.htm
While researchers know that bird feeding can influence nature, they do not know how it influences the people who feed those birds.
“Given that so many people are so invested in attracting birds to their backyard, we were interested in what natural changes they observe at their feeders beyond simply more birds,” said Ashley Dayer, an assistant professor in the Department of Fish and Wildlife Conservation in the College of Natural Resources and Environment at Virginia Tech. “In particular, we wanted to know how they respond to their observations. For example, how do they feel if they see sick birds at their feeders, and what actions do they take to address these observations?”