Figure 1.

(a) Three permanent alternative male reproductive morphs of ruff (Philomachus pugnax) associated with territorial lekking behaviour and plumage colour. Pictured bottom left: territorial dark-plumed ‘Independent’; bottom middle: female mimic ‘Faeder’; bottom right: non-territorial white-plumed ‘Satellite’; top middle: female (photos by L.L.F and S.B.M). (b) On a captive lek, the independent and satellite males are displaying (right) with the faeder male near by (left) (photo by S.B.M).

Farrell et al. BMC Genetics 2013 14:109   doi:10.1186/1471-2156-14-109
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