@article{journal, author = {Sarasa, M.}, title = {Looking for white feathers in male western capercaillies Tetrao urogallus}, year = {2023}, volume = {21}, pages = {39--47}, journal = {Arxius de Miscel·l{\`a}nia Zool{\`o}gica}, keywords = {Polimorfisme de color, Melanina, Coloraci{\'o} d'ocells, Albinisme parcial, Leucisme, Tetra{\`o}nids} }