Site fidelity and population structure of the red‐backed shrike lanius collurio in northern italy

Abstract

Data collected during ringing activities at the Station of Albonico were used to ascertain site fidelity and population structure of the Red‐backed Shrike in the Italian pre‐Alps. Males and females were recorded in equal numbers amongst ringed birds but in the ratio 2:1 among birds recovered. These results suggest a higher site‐fidelity for males than for females. © 1993 Taylor & Francis Group, LLC.