IbisVolume 149, Issue 2 p. 407-411 Changes in eye colour of juvenile Bearded Tits Panurus biarmicus and its use in determining breeding productivity JOHN WILSON, JOHN WILSON 40 Church Hill Avenue, Warton, Carnforth, Lancashire LA5 9NU, UKSearch for more papers by this authorIAN R. HARTLEY, Corresponding Author IAN R. HARTLEY Biological Sciences, Lancaster University, Lancaster LA1 4YQ, UK *Corresponding author. Email: i.hartley@lancaster.ac.ukSearch for more papers by this author JOHN WILSON, JOHN WILSON 40 Church Hill Avenue, Warton, Carnforth, Lancashire LA5 9NU, UKSearch for more papers by this authorIAN R. HARTLEY, Corresponding Author IAN R. HARTLEY Biological Sciences, Lancaster University, Lancaster LA1 4YQ, UK *Corresponding author. Email: i.hartley@lancaster.ac.ukSearch for more papers by this author First published: 22 January 2007 https://doi.org/10.1111/j.1474-919X.2006.00630.xCitations: 7Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume149, Issue2April 2007Pages 407-411 RelatedInformation