Beak coloration of starling (Sturnus unicolor) males depends on the length of their throat feathers Azcárate-García, Manuel Ruiz-Rodríguez, Magdalena Ruiz-Castellano, Cristina Díaz-Lora, Silvia Tomás, Gustavo Martín-Vivaldi Martínez, Manuel Lorenzo Soler, Juan José 2024-02-03T20:38:54Z 2024-02-03T20:38:54Z 2020 journal article https://hdl.handle.net/10481/88072 doi:10.1093/beheco/araa037 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License