Peters, AnnAstheimer, Lee BBoland, CCockburn, Andrew2015-12-130340-5443http://hdl.handle.net/1885/89234Testosterone has been proposed as a physiological link between the level of sexual signalling and male condition. Bright plumage is one of the most noticeable sexual signals and is often used by females as a basis for mate choice. Yet bright male plumageKeywords: bird; plumage; sexual selection; testosterone; Aves; Malurus cyaneus; Troglodytinae; Vertebrata Honest signalling; Pre-nuptial moult; Sexual dichromatism; Sexual selection; Testosterone20002015-12-12