Figure 3.

Examples of plumage diversity and sexual dimorphism in birds-of-paradise. Lower left male and female of the monogamous Manucodia keraudrenii, lower right male and two females of Parotia carolae, center left male and female Pteridophora alberti, top left male and female Paradisaea rubra, and top right male and female Diphyllodes magnificus.

Irestedt et al. BMC Evolutionary Biology 2009 9:235   doi:10.1186/1471-2148-9-235
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