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Article
Stéphane Duchateau, Auteur ; Gonzalo Chéliz, Auteur ; Juan Antonio Gil, Auteur ; Pascual López-López, AuteurDans Ibis (164(2) 2022)Cosmetic coloration is not a common phenomenon among bird species. Adult Bearded Vultures Gypaetus barbatus typically show orange coloration in head, chest, belly and tarsus feathers that is the result of mud baths in ferruginous substrates. Sev[...]
Article
Juan Antonio Gil, Auteur ; Gonzalo Chéliz, Auteur ; Iñigo Zuberogoitia, Auteur ; Pascual López-López, AuteurWe report the first cases of polygyny for the Bearded Vulture Gypaetus barbatus in the central Pyrenees, Spain. Although polyandry is frequent in the study area (31.8% of all reproductive units in 2016), we only observed the occurrence of three [...]
Article
Jaime Resano-Mayor, Auteur ; Ángel Fernández-Martín, Auteur ; Sergio Hernández-Gómez, Auteur ; Ignasi Toranzo, Auteur ; Antonio España, Auteur ; Juan Antonio Gil, Auteur ; Miguel de Gabriel, Auteur ; Isabel Roa-Álvarez, Auteur ; Eliseo Strinella, Auteur ; Keith A. Hobson, Auteur ; Gerald Heckel, Auteur ; Raphaël Arlettaz, AuteurThe population structure and seasonal movements of alpine birds in Europe are still largely unknown. Species living in high mountains now face acute risks of habitat loss, range contractions and local extinction due to current and projected clim[...]
Article
Iñigo Zuberogoitia, Auteur ; Juan Antonio Gil, Auteur ; José Enrique Martínez, Auteur ; Birgit Erni, Auteur ; Bakartxo Aniz, Auteur ; Pascual López-López, AuteurMoult is an extremely time-consuming and energy-demanding task for large birds. In addition, there is a trade-off between the time devoted to moulting and that invested in other activities such as breeding and/or territory exploration. Moreover,[...]
Article
Iñigo Zuberogoitia, Auteur ; Juan Antonio Gil, Auteur ; José Enrique Martínez, Auteur ; Birgit Erni, Auteur ; Bakartxo Aniz, Auteur ; Pascual López-López, AuteurMoult is an extremely time-consuming and energy-demanding task for large birds. In addition, there is a trade-off between the time devoted to moulting and that invested in other activities such as breeding and/or territory exploration. Moreover,[...]
