Data on the taxon and morpho-specific year-round diet and endozoochorous seed dispersal of the world's largest grouse, the Capercaillie Tetrao urogallus

<p><span>Here we present the quantitative data from our original high-resolution taxon- and morpho-specific dietary study based on cuticle microhistological analyses of food remains from the feces of Western Capercaillies <em>Tetrao urogallus</em>. By providing integrative quantitative dietary data based on the functional classification of different plant parts representing 49 kinds of plant food items from four major food categories (</span><span>leaves, buds, inflorescences, and fruits</span><span>), and intact seeds, arthropods, and mineral particles (grit), our dataset has potential applications in dietary studies, dispersal capabilities, and the reintroduction biology of gallinaceous birds. </span><span><span>&nbsp;</span></span></p>