@dataset{tinbergen_2021_4999016, author = {Tinbergen, Joost and Fokkema, Rienk and Pen, I. and Ubels, Richard}, title = {{Data from: Sea buckthorn berries (Hippophae rhamnoides L.) predict size and composition of a great tit population (Parus major L.).}}, month = jun, year = 2021, publisher = {Zenodo}, doi = {10.5061/dryad.h31dh73}, url = {https://doi.org/10.5061/dryad.h31dh73} }