A. Peters, A. G. Denk, K. Delhey and B. Kempenaers Carotenoid-based bill colour as an indicator of immunocompetence and sperm performance in male mallards Journal of Evolutionary Biology 17
Article first published online: 13 MAY 2004 | DOI: 10.1111/j.1420-9101.2004.00743.x
Complete the form below and we will send an e-mail message containing a link to the selected article on your behalf
Required = Required Field
Choose captcha format: Image or Audio. Click here if you need help.