Red Dominates Black: Agonistic Signaling Among Head
                                   Morphs In The Colour Polymorphic Gouldian Finch. (2006)

                                   Fiery Red Heads: Female Dominance Among Head Colour
                                   Morphs In The Gouldian Finch. (2007)

                                 
                                  The Relative Role Of Males V's Female Mate Choice In The
                                  Maintaining Assortative Pairing Among Discrete Colour Morphs.
                                  (2007)

                                  Frequency-dependent physiological trade-offs between
                                  competing colour morphs. (2007)