Contribution à l'étude de la migration du pinson des arbres Fringilla coelebs L. 1758: phénologie de la migration et analyse biométrique des captures en région liégeoise en automne 1984. ; Contribution to the study of the fall migration of the chaffinch: evolution of the visible migration and biometrical analysis of birds caught near Liège (East Belgium) in 1984

peer reviewed ; This work is on the analysis of automnal data collected during an intensive two-month bird ringing campaign organized near Liège in 1984. At first we remind the reader of some features and results related tho the study of avian migrations in general, and to the chaffinch Fringilla coelebs in particular. This information, gathered from an abundant literature, is essential to the good understanding of our own results. We then deal with three aspects of the data we collected during the fall migration, 1984. The first one describes the visible migration evolution of the chaffinch,... Mehr ...