How birds can stay slim, even when they overeat

Noticing that songbirds never seem to get fat despite overeating at bird feeders, environmental biologists wondered whether the amount of energy birds put into singing, fidgeting, or exercising could be adjusted in ways that regulate weight. Researchers now explore whether songbirds needn't worry about their calorie counts because they can control the way their bodies use energy.

from Latest Science News -- ScienceDaily https://ift.tt/2xjWCYo