Media type: E-Article Title: Copulation and mate guarding in the willow warbler Contributor: Arvidsson, Björn L. imprint: Elsevier BV, 1992 Published in: Animal Behaviour Language: English DOI: 10.1016/s0003-3472(05)80108-3 ISSN: 0003-3472 Origination: Footnote: