Spotless starling nestlings begging for food. (c) Cristina Ruiz-Castellano

Colouration of spotless starling nestlings informs their parents about their physiological condition and genetic quality

Ester Martínez-Renau, Cristina Ruiz-Castellano, Manuel Azcárate-García, M. Dolores Barón, and Juan José Soler Young birds are adept at catching the attention of their parents. When asking for food, they emit loud begging calls, perform specific movements and display flamboyant colourations on their mouth and beak flanges. These colourations help nestlings to communicate with parents and partially depend on nestling needs, so the parents use it … Continue reading Colouration of spotless starling nestlings informs their parents about their physiological condition and genetic quality