Proceedings of the Royal Society B: Biological Sciences
Published May 22, 2019 | 17:01 EDT (Brief from the Royal Society)
Many long-distance migratory birds undergo seasonal flight-muscle build up to power long-distance flights and digestive-machinery break down to reduce body mass. Captive experiments with the red knot shorebird reveal that these body-remodelling patterns can be triggered by diet changes outside of the migration period.

Corresponding author: Kimberley Mathot, University of Alberta – mathot@ualberta.ca