Jeff Martin has just published two new papers on the food caching choices of Canada jays. One examines jays’ preference to cache in some tree species, particularly spruce, and not others. A second paper shows how jays offered experimental diets balance the energy and protein content of the foods they cache and consume.
Martin, R. J., Fuirst M. & Sherry, D. F. (2022). Canada jays (Perisoreus canadensis) identity and exploit coniferous cache locations using visual cues. Ethology, doi: 10.1111/eth.13273.
Martin, R. J., Dick, M. F. & Sherry, D. F. (2022). Canada jays (Perisoreus canadensis) balance protein and energy targets simultaneously in both consumed and cached food. Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology, 266, 111142.