Resumen de Seasonal individual and population-associated patterns of migration of goldfinches carduelis carduelis through the Western edge of Pyrenees

Juan Arizaga Martínez, Juan F. Cuadrado, Luis Romero

• Contributing to know the migration strategies of goldfinches Carduelis carduelis passing over through the western edge of Pyrenees, focusing in time-associated variations in age and sex ratios and morphology